ES379444A2 - A procedure for preparing tetracycline derivatives (Machine-translation by Google Translate, not legally binding) - Google Patents

A procedure for preparing tetracycline derivatives (Machine-translation by Google Translate, not legally binding)

Info

Publication number
ES379444A2
ES379444A2 ES379444A ES379444A ES379444A2 ES 379444 A2 ES379444 A2 ES 379444A2 ES 379444 A ES379444 A ES 379444A ES 379444 A ES379444 A ES 379444A ES 379444 A2 ES379444 A2 ES 379444A2
Authority
ES
Spain
Prior art keywords
translation
machine
legally binding
google translate
procedure
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
ES379444A
Other languages
Spanish (es)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wyeth Holdings LLC
Original Assignee
American Cyanamid Co
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
Priority claimed from US161412A external-priority patent/US3148212A/en
Application filed by American Cyanamid Co filed Critical American Cyanamid Co
Publication of ES379444A2 publication Critical patent/ES379444A2/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C233/00Carboxylic acid amides

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Abstract

Improvements introduced in the object of the main patent no. 277.406, issued on september 20, 1962 by: "a process for preparing tetracycline derivatives", characterized by forming a solution of 7-dimethylamino-6-demethyl-6-deoxytetracycline or a salt of it in water in the presence of chloride ion, reach a ph of the final solution of less than 1.5, separate any insoluble material, adjust the ph of the clarified solution to 3.5-4.0 with a base, as as a result of which the crystallization of 7-dimethylamino-6-demethyl-6-deoxytetracycline takes place in the form of the hydrochloride dihydrate, and thereafter recovering the hydrochloride dihydrate salt. (Machine-translation by Google Translate, not legally binding)
ES379444A 1961-10-24 1970-05-08 A procedure for preparing tetracycline derivatives (Machine-translation by Google Translate, not legally binding) Expired ES379444A2 (en)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
US14713761A 1961-10-24 1961-10-24
US161412A US3148212A (en) 1961-12-22 1961-12-22 Reductive alkylation process
US17159962A 1962-02-07 1962-02-07
ES277406A ES277406A1 (en) 1961-10-24 1962-05-17 A procedure for preparing tetracycline derivatives (Machine-translation by Google Translate, not legally binding)
US53928266A 1966-04-01 1966-04-01
US54436866A 1966-04-22 1966-04-22
US58920666A 1966-10-25 1966-10-25

Publications (1)

Publication Number Publication Date
ES379444A2 true ES379444A2 (en) 1972-11-01

Family

ID=56089740

Family Applications (3)

Application Number Title Priority Date Filing Date
ES277406A Expired ES277406A1 (en) 1961-10-24 1962-05-17 A procedure for preparing tetracycline derivatives (Machine-translation by Google Translate, not legally binding)
ES338710A Expired ES338710A2 (en) 1961-10-24 1967-03-31 A procedure for preparing tetracycline derivatives. (Machine-translation by Google Translate, not legally binding)
ES379444A Expired ES379444A2 (en) 1961-10-24 1970-05-08 A procedure for preparing tetracycline derivatives (Machine-translation by Google Translate, not legally binding)

Family Applications Before (2)

Application Number Title Priority Date Filing Date
ES277406A Expired ES277406A1 (en) 1961-10-24 1962-05-17 A procedure for preparing tetracycline derivatives (Machine-translation by Google Translate, not legally binding)
ES338710A Expired ES338710A2 (en) 1961-10-24 1967-03-31 A procedure for preparing tetracycline derivatives. (Machine-translation by Google Translate, not legally binding)

Country Status (8)

Country Link
BE (1) BE618065A (en)
CH (2) CH444848A (en)
DK (1) DK126586B (en)
ES (3) ES277406A1 (en)
GB (1) GB1003474A (en)
LU (1) LU41768A1 (en)
MC (1) MC370A1 (en)
SE (1) SE309416B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2316468A1 (en) 2002-02-22 2011-05-04 Shire LLC Delivery system and methods for protecting and administering dextroamphetamine

Also Published As

Publication number Publication date
GB1003474A (en) 1965-09-02
MC370A1 (en) 1963-03-28
SE309416B (en) 1969-03-24
BE618065A (en) 1962-11-26
DK126586B (en) 1973-07-30
ES277406A1 (en) 1962-12-01
CH444848A (en) 1967-10-15
LU41768A1 (en) 1962-07-24
CH448070A (en) 1967-12-15
ES338710A2 (en) 1968-04-01

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Legal Events

Date Code Title Description
FD2A Announcement of lapse in spain

Effective date: 20170703