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.)
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Novartis AG
BASF Schweiz AG
Original Assignee
Ciba Geigy AG
Ciba AG
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Publication date
Priority claimed from CH627763Aexternal-prioritypatent/CH442294A/en
Application filed by Ciba Geigy AG, Ciba AGfiledCriticalCiba Geigy AG
Publication of ES299885A1publicationCriticalpatent/ES299885A1/en
Procedure for obtaining androstenes 7 α -methyl of general formula I ** (See formula) ** Where R1 represents a hydrogen atom or a methyl group R2 and R3 a hydrogen atom, a low hydrocarbon residue, the tetrahydropyranyl radical or an acyl radical with 1-18 carbon atoms and R4 a hydrogen atom or an aliphatic hydrocarbon radical low, characterized, by which the compounds of formula II ** (See formula) ** they are epoxidized and in the epoxides obtained the 4,5-oxide group is dissociated, or the compounds of the formula XI are hydroxylized and the 4,5-dihydroxy compounds obtained are dehydrated, or in the compounds of formula V ** (See formula) ** where Hal represents a halogen atom, the halogen atom is exchanged for the OR2 moiety, or the compounds of formula VI ** (See formula) ** they are oxidized and, if desired, the hydroxyl groups existing in the obtained compounds are esterified in known forms or the esterified or etherized hydroxy groups are transformed into free hydroxy groups. (Machine-translation by Google Translate, not legally binding)
ES299885A1963-05-171964-05-16Procedure for obtaining androstenos 7 metºlicos (Machine-translation by Google Translate, not legally binding)
ExpiredES299885A1
(en)
Procedure for the preparation of 4,5 alpha - oxide - gufa-20,22-dienolid-3- (ramnosido 2'83 '- dialcohilortocarbonatos). (Machine-translation by Google Translate, not legally binding)
Procedure for the obtaining of steroids of the pregnan series, replaced by chlorine in the position 2. (Machine-translation by Google Translate, not legally binding)
A method to produce new derivatives of indolilalcohil guanidine and salts from themselves (Machine-translation by Google Translate, not legally binding)