CH242833A - Process for the preparation of a lactone of the cyclopentanopolyhydrophenanthrene series. - Google Patents
Process for the preparation of a lactone of the cyclopentanopolyhydrophenanthrene series.Info
- Publication number
- CH242833A CH242833A CH242833DA CH242833A CH 242833 A CH242833 A CH 242833A CH 242833D A CH242833D A CH 242833DA CH 242833 A CH242833 A CH 242833A
- Authority
- CH
- Switzerland
- Prior art keywords
- sep
- acid
- lactone
- allocholenic
- carbon
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 9
- 150000002596 lactones Chemical class 0.000 title description 4
- 239000002253 acid Substances 0.000 claims description 9
- WFDIJRYMOXRFFG-UHFFFAOYSA-N Acetic anhydride Chemical compound CC(=O)OC(C)=O WFDIJRYMOXRFFG-UHFFFAOYSA-N 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 239000007795 chemical reaction product Substances 0.000 claims description 4
- 239000007800 oxidant agent Substances 0.000 claims description 4
- 239000000047 product Substances 0.000 claims description 4
- JPJALAQPGMAKDF-UHFFFAOYSA-N selenium dioxide Chemical compound O=[Se]=O JPJALAQPGMAKDF-UHFFFAOYSA-N 0.000 claims description 4
- 239000007858 starting material Substances 0.000 claims description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 150000001721 carbon Chemical group 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 239000011203 carbon fibre reinforced carbon Substances 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims description 2
- 150000002148 esters Chemical class 0.000 claims description 2
- 230000007062 hydrolysis Effects 0.000 claims description 2
- 238000006460 hydrolysis reaction Methods 0.000 claims description 2
- 230000003301 hydrolyzing effect Effects 0.000 claims description 2
- 150000004702 methyl esters Chemical class 0.000 claims description 2
- 230000001419 dependent effect Effects 0.000 claims 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims 1
- 239000002904 solvent Substances 0.000 claims 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 4
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 description 4
- 229910052711 selenium Inorganic materials 0.000 description 4
- 239000011669 selenium Substances 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 150000007513 acids Chemical class 0.000 description 3
- 239000002574 poison Substances 0.000 description 3
- 231100000614 poison Toxicity 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- VOZHMAYHYHEWBW-NVOOAVKYSA-N Bufotalin Chemical compound C=1([C@@H]2[C@@]3(C)CC[C@@H]4[C@@]5(C)CC[C@H](O)C[C@H]5CC[C@H]4[C@@]3(O)C[C@@H]2OC(=O)C)C=CC(=O)OC=1 VOZHMAYHYHEWBW-NVOOAVKYSA-N 0.000 description 2
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- 229930183217 Genin Natural products 0.000 description 2
- CPELXLSAUQHCOX-UHFFFAOYSA-N Hydrogen bromide Chemical compound Br CPELXLSAUQHCOX-UHFFFAOYSA-N 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 230000008030 elimination Effects 0.000 description 2
- 238000003379 elimination reaction Methods 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- YNPNZTXNASCQKK-UHFFFAOYSA-N phenanthrene Chemical compound C1=CC=C2C3=CC=CC=C3C=CC2=C1 YNPNZTXNASCQKK-UHFFFAOYSA-N 0.000 description 2
- KBOQXVVZFSWICE-BSKUUKNUSA-N 5-[(10r,13r,14s,17r)-14-hydroxy-10,13-dimethyl-1,2,7,8,9,11,12,15,16,17-decahydrocyclopenta[a]phenanthren-17-yl]pyran-2-one Chemical compound C=1([C@H]2CC[C@]3(O)C4C([C@]5(CCC=CC5=CC4)C)CC[C@@]32C)C=CC(=O)OC=1 KBOQXVVZFSWICE-BSKUUKNUSA-N 0.000 description 1
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 241000208011 Digitalis Species 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 230000031709 bromination Effects 0.000 description 1
- 238000005893 bromination reaction Methods 0.000 description 1
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 1
- 229910052794 bromium Inorganic materials 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000007257 deesterification reaction Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 125000000422 delta-lactone group Chemical group 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 229910000042 hydrogen bromide Inorganic materials 0.000 description 1
- 239000013067 intermediate product Substances 0.000 description 1
- JDNTWHVOXJZDSN-UHFFFAOYSA-N iodoacetic acid Chemical class OC(=O)CI JDNTWHVOXJZDSN-UHFFFAOYSA-N 0.000 description 1
- 230000006651 lactation Effects 0.000 description 1
- 238000007273 lactonization reaction Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- YDCHPLOFQATIDS-UHFFFAOYSA-N methyl 2-bromoacetate Chemical compound COC(=O)CBr YDCHPLOFQATIDS-UHFFFAOYSA-N 0.000 description 1
- 229930014626 natural product Natural products 0.000 description 1
- 125000001820 oxy group Chemical group [*:1]O[*:2] 0.000 description 1
- 150000002987 phenanthrenes Chemical class 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000007127 saponification reaction Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
- 238000005292 vacuum distillation Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07J—STEROIDS
- C07J19/00—Normal steroids containing carbon, hydrogen, halogen or oxygen, substituted in position 17 by a lactone ring
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07J—STEROIDS
- C07J75/00—Processes for the preparation of steroids in general
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Verfahren zur Herstellung eines Lactons der Cyelbpentanopolyhydrophenanthren-Relhe. Die Genine der pflanzlichen Herzgifte und der Krötengifte sind Derivate der Cyclo- pentanopolyhydrophenanthren-Reihe,
welche als charakteristisches Merkmal eine Seiten- kette mit einer ungesättigten y- oder- d-Lac- tongruppierung enthalten.
Die Lage und die Anzahl der Doppelbindungen scheinen dabei nicht sicher festzustehen. .So war für die Gruppe der Digitalis- und Strophantus-genine bis vor kurzem die Formulierung als ss,y- ungesättigte Lactone (vergleiche z.
B. Fie-, ser, Chemistry (>f natural products related to Phenanthrene, New York, 1936, Seite 262) allgemein gebräuchlich, während neuerdings die. Formulierung als a,;
,f-ungesättigte Lac- 'töne in den Vordergrund tritt [vergleiche Paist, Blout, Uhle und Elderfield, J: org. Chem., Band 6-, Seite<B>273</B> (1941);
Helvetica Chimica Acta 25, 79 (1942)]. Anderseits sol len das Scillaridin A und das. Krötengift- genin Bufotalin -eine doppelt ungesättigte ö-Lactongruppe besitzen (vergleiche,.dagegen Fieser, Seite 310, wonach das Bufötalin eine
EMI0001.0062
einfach-, <SEP> und <SEP> zwar <SEP> y,
d-ungesättigte <SEP> ö-Lac tongruppe <SEP> aufweisen <SEP> soll).
<tb>
Es <SEP> wurde <SEP> nun <SEP> -gefunden, <SEP> daB <SEP> man <SEP> zu
<tb> einem <SEP> Lacton <SEP> der <SEP> Cyclopentanopolyhydro phenanthren-Reihe <SEP> gelangen <SEP> kann, <SEP> wenn <SEP> man
<tb> auf <SEP> ein <SEP> Derivat <SEP> der <SEP> dzo,2z_3-pgy-nor-allocho lensäure <SEP> von <SEP> der <SEP> Formel
EMI0001.0063
worin ä einen durch laetonisierende Mittel sich abspaltenden Rest und R -einen durch Hydrolyse durch die Hydrogylgruppe ersetz baren Rest bedeuten, mit Oxydationsmitteln behandelt,
welche an einem in a-,Stellung zu einer $ohlenstoff-gohlenstoff-Doppelbindung befindlichen Kohlenstoffatom eine sauer- =stoffhaltige Gruppe einzuführen vermögen, und auf das so erhaltene Reaktionsprodukt ein lactonisierendas, und ein hydrolysierendes Mittel einwirken lässt.- Die. Ausgangsstoffe können z.
B. durch Kondensation geeigneter Betone der allo- Pregnanreihe mit-hälogenierten tssigsäure- derivaten, wie Chlor-, Brom- und Jodessig säureester und Wasserabspaltung leicht her gestellt werden. Sie sind ferner z.
B. auch durch Bromierung von entsprechenden gesät- tagten Säuren und Bromwasserstoff-Abspal- tung zugänglich. Geeignete Ausgangsstoffe sind z. B. A0,22-3-Acyloxy-nor-allocholen- säureester. Es lassen sich aber auch die ent sprechenden freien .Säuren oder Amide ver wenden.
Oxydationsmittel, die geeignet sind, in die fragliche a=Stellung zu der 10,22-Doppel- bindung eine sauerstoffhaltige Gruppe, z. B. eine freie oder veresterte Oxy-Gruppe, einzu- führen, sind z.
B. Selendioxyd oder Bleitetra- acylate. Die Behandlung mit diesen Mitteln wird zweckmässig unter Benützung geeigne ter Lösungs- bezw. Verdünnungsmittel aus- geführt, gegebenenfalls bei erhöhter 'Tem peratur.
Zur Laotonisierung kann man das Reak tionsprodukt z. B. mit Säuren behandeln oder einer Vakuum-Destillation- unterwerfen, Die Lactönisierung ist vorher meist nur unvoll ständig. Sind die 17-Hydröxylgruppe und- die Carboxylgrüppe nicht frei, so kann die Lac- tonisierung z.
B. auch durch eine intramole- kulare Esterabspaltung erfolgen.
Das nach dem neuen Verfahren erhält liehe Produkt, das 420,2ä-3 21-Dioxy-nor-allo- cholensäure-laeton vom F. 248-250 , ist identisch mit der gemäss Patent Nr.
240099 herstellbaren Verbindung. Es soll therapeu- tisclhe Verwendung finden oder als Zwischen produkt zur Herstellung therapeutisch ver wendbarer Verbindungen dienen. <I>-</I> Beispiel: 4 g di0,22_3-gcetoXy-nör-allocholensäure- methylester vom F. 154=156 (der.
B. aus 3-Oxy-allo-pregnanön-(20) durch Umsetzung mit Bromessigsäure-methylester nach Refor- matzky und anschliessende Wasserabspaltung leicht zugänglich ist)
werden in 3.00 cm3 Essigsäureanhydrid gelöst und bei-Siedehitze tropfenweise mit einer Lösung von 4 g S'elen- diogyd in 20 cm3 Wasser versetzt.'Die Aus scheidung von ,Selen beginnt augenblicklich. Nach mehrstündigem Kochen am Rückfluss wird die Lösung im Vakuum auf 50 cm3 ein gedampft.
Man filtriert vom ausgeschiedenen Selen ab, giesst das Filtrat in Wasser und kocht kurz auf. Nach dem Erkalten wird das ausgeschiedene, Reaktionsprodukt in Äther aufgenommen.
Der Äther wird verdampft und der Rückstand einer Destillation im Hochvakuum unterworfen. Das Destillat wird in Benzol gelöst, mit Tierkohle behandelt und zur Entfernung der letzten Spuren von Selen resp. µelenhaltigen Anteilen an Aluminium- oxyd chromatographiert. Die Hauptfraktion des Chromatogramms kristallisiert nach Zu satz von Methanol.
Nach Umkristallisieren aus Alkohol schmilzt dieses Produkt bei 193 : Es liegt das A0,22-3 Acetogy-21-oxy-nor-allo- cholensäure-lacton vor, das eine spezifische Drehung von jaj D = -1 ,0 (Chloroform) zeigt. - Durch saure Verseifung erhält man dar aus in praktisch quantitativer Ausbeute das 420,22-8. 21-Diogy-nor-allöcholensäure-lactön vom F.
248-250 und der Formel .
EMI0002.0146
-Beide Produkte geben einen positiven Legaltest.
Process for the production of a lactone of Cyelbpentanopolyhydrophenanthren-Relhe. The genins of the herbal heart poisons and the toad poisons are derivatives of the cyclopentano-polyhydrophenanthrene series,
which contain a side chain with an unsaturated y- or -d-lactone grouping as a characteristic feature.
The position and the number of double bonds do not seem to be certain. Until recently, for the group of digitalis and strophantus genins, the formulation as ss, y-unsaturated lactones (cf.
B. Fie, ser, Chemistry (> f natural products related to Phenanthrene, New York, 1936, page 262) in general use, while more recently. Formulation as a ,;
'f-unsaturated lac-' tones come to the fore [compare Paist, Blout, Uhle and Elderfield, J: org. Chem., Vol. 6-, page 273 (1941);
Helvetica Chimica Acta 25, 79 (1942)]. On the other hand, the scillaridin A and the toad poison in bufotaline should have a doubly unsaturated δ-lactone group (cf., on the other hand, Fieser, page 310, according to which the bufotaline has a
EMI0001.0062
simple-, <SEP> and <SEP> although <SEP> y,
d-unsaturated <SEP> ö -lacton group <SEP> have <SEP>).
<tb>
<SEP> was <SEP> now <SEP> found, <SEP> that <SEP> man <SEP> to
<tb> a <SEP> lactone <SEP> of the <SEP> cyclopentanopolyhydro phenanthrene series <SEP> can get <SEP>, <SEP> if <SEP> one
<tb> on <SEP> a <SEP> derivative <SEP> of <SEP> dzo, 2z_3-pgy-nor-allocholene acid <SEP> of <SEP> of the <SEP> formula
EMI0001.0063
in which ä means a radical which is split off by laetonizing agents and R means a radical which can be replaced by hydrolysis by the hydroyl group, treated with oxidizing agents,
which are able to introduce an oxygen-containing group on a carbon atom in a position to a carbon-carbon double bond, and allow a lactonizing agent and a hydrolyzing agent to act on the reaction product thus obtained. Starting materials can, for.
B. by condensation of suitable concretes of the allo-pregnant series with-hemogenated tssigsäure- derivatives, such as chlorine, bromine and iodoacetic acid esters and dehydration can easily be made ago. You are also z.
B. also accessible by bromination of corresponding saturated acids and elimination of hydrogen bromide. Suitable starting materials are, for. B. A0,22-3-acyloxy-nor-allocholenic acid ester. However, the corresponding free acids or amides can also be used.
Oxidizing agents which are suitable for an oxygen-containing group in the a = position in question to the 10,22 double bond, e.g. B. a free or esterified oxy group to introduce, are z.
B. selenium dioxide or lead tetra acylates. Treatment with these agents is expediently carried out using suitable solutions or. Thinner carried out, if necessary at an elevated temperature.
For Laotonization you can reac tion product z. B. treat with acids or subject to vacuum distillation. The lactonization is usually only incomplete beforehand. If the 17-hydroxyl group and the carboxyl group are not free, the lactation can e.g.
B. also take place by an intramolecular ester cleavage.
The product obtained by the new process, the 420,2ä-3 21-dioxy-nor-allo- cholenic acid laeton from F. 248-250, is identical to that according to patent no.
240099 establishable connection. It should find therapeutic use or serve as an intermediate product for the production of therapeutically usable compounds. <I> - </I> Example: 4 g di0,22_3-gcetoXy-nör-allocholenic acid methyl ester with a melting point of 154 = 156 (der.
B. from 3-oxy-allo-pregnanön- (20) by reaction with methyl bromoacetate according to Reformatzky and subsequent elimination of water is easily accessible)
are dissolved in 3.00 cm3 of acetic anhydride and a solution of 4 g of selenium in 20 cm3 of water is added drop by drop at the boiling point. Selenium begins to be eliminated immediately. After boiling under reflux for several hours, the solution is evaporated to 50 cm3 in vacuo.
The precipitated selenium is filtered off, the filtrate is poured into water and briefly boiled. After cooling, the excreted reaction product is taken up in ether.
The ether is evaporated and the residue is subjected to distillation in a high vacuum. The distillate is dissolved in benzene, treated with animal charcoal and, respectively, to remove the last traces of selenium. Chromatographed alumina-containing fractions. The main fraction of the chromatogram crystallizes after addition of methanol.
After recrystallization from alcohol, this product melts at 193: A0.22-3 acetogy-21-oxy-nor-allo-cholenic acid-lactone is present, which shows a specific rotation of jaj D = -1.0 (chloroform). - By acidic saponification, the 420,22-8 is obtained therefrom in a practically quantitative yield. 21-Diogy-nor-allocholenic acid-lactön from F.
248-250 and the formula.
EMI0002.0146
-Both products pass a positive legal test.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH242833T | 1941-06-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH242833A true CH242833A (en) | 1946-06-15 |
Family
ID=4463198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH242833D CH242833A (en) | 1941-06-12 | 1941-06-12 | Process for the preparation of a lactone of the cyclopentanopolyhydrophenanthrene series. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH242833A (en) |
-
1941
- 1941-06-12 CH CH242833D patent/CH242833A/en unknown
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