IL80759A - 5,7-diene steroids useful as intermediates in the synthesis of 2k-hydroxyvitamin d2 and analogs thereof
- Google Patents
5,7-diene steroids useful as intermediates in the synthesis of 2k-hydroxyvitamin d2 and analogs thereof
Info
Publication number
IL80759A
IL80759AIL8075983AIL8075983AIL80759AIL 80759 AIL80759 AIL 80759AIL 8075983 AIL8075983 AIL 8075983AIL 8075983 AIL8075983 AIL 8075983AIL 80759 AIL80759 AIL 80759A
Authority
IL
Israel
Prior art keywords
hydroxyvitamin
analogs
intermediates
synthesis
steroids useful
Prior art date
Application number
IL8075983A
Original Assignee
Wisconsin Alumni Res Found
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 US06/420,191external-prioritypatent/US4448721A/en
Application filed by Wisconsin Alumni Res FoundfiledCriticalWisconsin Alumni Res Found
Publication of IL80759ApublicationCriticalpatent/IL80759A/en
New process for the preparation of certain steroids, especially intermediates for the preparation of proligestone and related compounds, and new intermediates formed in this process
24,24-difluoro-1alpha,25-dihydroxycholecalciferol,24,24-difluoro-1alpha,25,-dihydroxy-5,6-trans-cholecalciferol and intermediates;pharmaceutical compositions