Process for the preparation of 21-hydroxy-16-pregnen-20-one derivatives
申请人:Schering Aktiengesellschaft
公开号:US04089852A1
公开(公告)日:1978-05-16
.DELTA..sup.16 -21-HYDROXY-20-KETO STEROIDS OF THE PREGNANE SERIES HAVING AN OTHERWISE UNSUBSTITUTED D-ring and a 13-methyl or -ethyl group, and 21-ethers and -esters thereof, are produced by reaction of a corresponding D-ring saturated 17-keto steroid with a lithium compound of the formula ##STR1## thereby converting the 17-keto group to a 17.beta.-hydroxy-20.alpha.-enol ether in which the 17.alpha.-side chain has the formula ##STR2## wherein R.sub.3 and R.sub.4 have the values given above, and, in any desired sequence, splitting off R.sub.3 and/or R.sub.4 enol ether by hydrolysis; eliminating 17.beta.-hydroxy group, preferably after acylation, with formation of a .DELTA..sup.16 -double bond; and, if desired, splitting off any blocking group.
Cortexolone-17alpha-propionate in crystalline form I
申请人:Cosmo S.p.A.
公开号:EP2503004A1
公开(公告)日:2012-09-26
The present invention refers to a new enzymatic process for obtaining cortexolone 17α-propionate starting from the corresponding 17α,21-diesters which comprises an enzymatic alcoholysis reaction.
Furthermore, the present invention refers to a new crystalline form of cortexolone 17α-propionate.
Cortexolone-17alpha-propionate in cristalline hydrate form IV
申请人:Cosmo S.p.A.
公开号:EP2503005A2
公开(公告)日:2012-09-26
The present invention refers to a new enzymatic process for obtaining cortexolone-17α-propionate starting from the corresponding 17α,21-diesters which comprises an enzymatic alcoholysis reaction.
Furthermore, the present invention refers to a new crystalline form of cortexolone 17α-propionate.
17α,21-diesters of cortexolone for use in the treatment of tumors
申请人:COSMO TECHNOLOGIES LTD.
公开号:US10183030B2
公开(公告)日:2019-01-22
The present invention provides certain cortexolone derivatives of formula (I) and the same for use as antitumor active ingredients for the curative or adjuvant, or neoadjuvant or palliative treatment of precancerous lesions, dysplasias, metaplasias and tumor diseases, including malignant neoplasias and metastasis. Another aspect of the invention relates to pharmaceutical compositions comprising cortexolone derivatives of formula (I) as active ingredients and at least one physiologically acceptable excipient, and to the use of said pharmaceutical compositions as antitumor medicinal products.
Cortexolone 17alpha-benzoate for use in the treatment of tumours
申请人:COSMO TECHNOLOGIES LTD.
公开号:US10231980B2
公开(公告)日:2019-03-19
The present invention provides certain cortexolone derivatives of formula (I), and the same for use as antitumor active ingredients for the curative or adjuvant, or neoadjuvant or palliative treatment of precancerous lesions, dysplasias, metaplasias and tumor diseases, including malignant neoplasias and metastasis. Another aspect of the invention relates to pharmaceutical compositions comprising cortexolone derivatives of formula (I) as active ingredients and at least one physiologically acceptable excipient, and to the use of said pharmaceutical compositions as antitumor medicinal products.