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.)
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.)
Merck KGaA
Original Assignee
E Merck AG
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Filing date
Publication date
Application filed by E Merck AGfiledCriticalE Merck AG
Priority to ES0308015ApriorityCriticalpatent/ES308015A3/en
Publication of ES308015A3publicationCriticalpatent/ES308015A3/en
Procedure for the preparation of estradiol esters, according to the generic formula I: ** (See formula) ** where "n" is an integer between 1 and 3 inclusive characterized by treating a starting product according to the generic formula II: ** (See formula) ** R1 is a radical of the group: H ** (See formula) ** acid radical R2 is a radical of the group: H acid radical ether radical with one of the following reagents: omega-tetrahydro-furyl (2) -alkylcarboxylic radical containing compound; mild saponifying agent; reducing agent; acid agent; take it to a temperature comprised between 0 and 150º, keep it under this temperature for a variable period of time between 1 minute and 48 hours, and separate the product according to formula I thus obtained. (Machine-translation by Google Translate, not legally binding)
ES0308015A1965-01-111965-01-11Procedure for the preparation of estradiol esters. (Machine-translation by Google Translate, not legally binding)
ExpiredES308015A3
(en)
A procedure for preparing derivatives of 10,11-dihydro-5- [h] -dibenzo- [a, b] -ciclohepteno (Machine-translation by Google Translate, not legally binding)