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
GB3412463A
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.)
BASF Schweiz AG
Original Assignee
Ciba AG
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 Ciba AGfiledCriticalCiba AG
Publication of GB1031541ApublicationCriticalpatent/GB1031541A/en
Organic Low-Molecular-Weight Compounds And Preparation Thereof
(AREA)
Abstract
17a - Hydroxy - 18b - RO - 20a - yohimbane-16b -carboxylic acid esters, in which R represents the acyl group of an at least disubstituted benzoic acid, or N-oxides thereof or salts of these compounds are prepared by reacting a 17a , 18b - dihydroxy - 20a - yohimbane - 16b -carboxylic acid ester or an N-oxide or salt thereof with a reactive functional derivative, e.g. a halide or anhydride, of a benzoic acid that contains at least 2 substituents, and, if desired, a resulting compound is N-oxidized to form an N-oxide or a resulting N-oxide is reduced and/or a resulting salt is converted into the free base or a free base is converted into a salt.
GB3412463A1962-08-281963-08-28New process for the manufacture of yohimbane compounds
ExpiredGB1031541A
(en)
Procedure for the preparation of amidas derived from the steres of piperazin-1 propionic acid. (Machine-translation by Google Translate, not legally binding)