IE35636L - Benzopyrans - Google Patents

Benzopyrans

Info

Publication number
IE35636L
IE35636L IE711154A IE115471A IE35636L IE 35636 L IE35636 L IE 35636L IE 711154 A IE711154 A IE 711154A IE 115471 A IE115471 A IE 115471A IE 35636 L IE35636 L IE 35636L
Authority
IE
Ireland
Prior art keywords
compounds
sept
pyridyl
prepared
group
Prior art date
Application number
IE711154A
Other versions
IE35636B1 (en
Original Assignee
Beecham Group Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beecham Group Ltd filed Critical Beecham Group Ltd
Publication of IE35636L publication Critical patent/IE35636L/en
Publication of IE35636B1 publication Critical patent/IE35636B1/en

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D405/00Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom
    • C07D405/02Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings
    • C07D405/04Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings directly linked by a ring-member-to-ring-member bond

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Plural Heterocyclic Compounds (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Abstract

1360009 Chromene derivatives BEECHAM GROUP Ltd 9 Sept 1971 [14 Sept 1970] 42066/71 Heading C2C The invention comprises compounds of formula wherein R 1 is a C 1 -C 6 aliphatic group, R 2 is a C 1 -C 20 aliphatic group, R 3 is an optionally substituted C 1 -C 20 hydrocarbon group and X is OH or an ester, ether or salt thereof; and N- oxides, acid addition and quaternary salts thereof. These compounds are prepared by reduction with a borohydride of the corresponding quaternary pyridinium salt, or, e.g. the compounds in which X is OH may be O- acylated. Intermediates also prepared are the analogous 4 - (4 - pyridyl) - chromenes and -coumarins; and 1 - (4 - R - 2,6 - dihydroxyphenyl) - 1 - (4- pyridyl) - 3 - methylbut - 1 - en - 3 - ols, where R is Bu or n-hexyl. Therapeutic compounds for oral, parenteral or rectal administration comprise compounds of the above formula, which have cardiovascular and C.N.S., e.g. antihypertensive, activity. [GB1360009A]
IE1154/71A 1970-09-14 1971-09-10 Substituted benzopyrans and their preparation IE35636B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US7221770A 1970-09-14 1970-09-14

Publications (2)

Publication Number Publication Date
IE35636L true IE35636L (en) 1972-03-14
IE35636B1 IE35636B1 (en) 1976-04-14

Family

ID=22106286

Family Applications (1)

Application Number Title Priority Date Filing Date
IE1154/71A IE35636B1 (en) 1970-09-14 1971-09-10 Substituted benzopyrans and their preparation

Country Status (14)

Country Link
AT (1) AT308108B (en)
BE (1) BE772492A (en)
CA (1) CA965421A (en)
CH (1) CH559209A5 (en)
DE (1) DE2145320A1 (en)
DK (1) DK135994B (en)
ES (1) ES394980A1 (en)
FR (1) FR2106490B1 (en)
GB (1) GB1360009A (en)
IE (1) IE35636B1 (en)
NL (1) NL7112521A (en)
NO (1) NO134743C (en)
SE (1) SE372943B (en)
ZA (1) ZA716039B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3960880A (en) * 1974-03-26 1976-06-01 Beecham Group Limited Tetrahydropyrid-4-yl-chroman-5-ol derivatives
JPS4995978A (en) * 1973-01-24 1974-09-11
GB1417745A (en) * 1973-07-07 1975-12-17 Beecham Group Ltd Chromene compounds

Also Published As

Publication number Publication date
DK135994C (en) 1977-12-27
NO134743C (en) 1976-12-08
FR2106490A1 (en) 1972-05-05
FR2106490B1 (en) 1975-04-18
CH559209A5 (en) 1975-02-28
SE372943B (en) 1975-01-20
BE772492A (en) 1972-03-10
AU3336571A (en) 1973-03-15
DE2145320A1 (en) 1972-03-16
CA965421A (en) 1975-04-01
ES394980A1 (en) 1974-12-01
DK135994B (en) 1977-07-25
IE35636B1 (en) 1976-04-14
NL7112521A (en) 1972-03-16
AT308108B (en) 1973-06-25
GB1360009A (en) 1974-07-17
NO134743B (en) 1976-08-30
ZA716039B (en) 1972-07-26

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