Process for obtaining 6-Alkylidenandrost-1,4-diene-3one
申请人:Crystal Pharma, S.A.
公开号:EP2070943A1
公开(公告)日:2009-06-17
6-alkylidenandrost-1,4-dien-3-ones of general formula (I), wherein R is H o alkyl; R1 y R2, independently of one another, represent H, OR3, OC(=O) R4 or O-(GPH), wherein R3 is H; C1-C6 alkyl or aryl; R4 is H or C1-C6 alkyl,; and GPH is a hydroxyl protecting group; or R1 and R2, together with the carbon atom to which they are bonded, form a carbonyl group or equivalent or a cyclic ketal; can be obtained by a process comprising subjecting the corresponding 6-alkyliden-4-androsten-3-one to a dehydrogenation reaction in the 1,2 position in the presence of a quinine, a silylating agent and a strong acid.
PROCESS FOR PREPARING AROMATIASE INHIBITOR EXEMESTANE
申请人:Agarwal Virendra Kumar
公开号:US20100311993A1
公开(公告)日:2010-12-09
The present invention discloses modified process for preparing aromatase inhibitor Exemestane involving suitable oxidizing agents in suitable solvents.
PROCESS FOR OBTAINING 6-ALKYLIDENANDROST-1, 4-DIENE-3-ONE
申请人:Bermejo González Francisco
公开号:US20110118488A1
公开(公告)日:2011-05-19
6-alkylidenandrost-1,4-dien-3-ones of general formula (I), wherein R is H o alkyl; R
1
y R
2
, independently of one another, represent H, OR
3
, OC(═O)R
4
or O-(GPH), wherein R
3
is H; C
1
-C
6
alkyl or aryl; R
4
is H or C
1
-C
6
alkyl, and GPH is a hydroxyl protecting group; or R
1
and R
2
, together with the carbon atom to which they are bonded, form a carbonyl group or equivalent or a cyclic ketal; can be obtained by a process comprising subjecting the corresponding 6-alkyliden-4-androsten-3-one to a dehydrogenation reaction in the 1,2 position in the presence of a quinone, a silylating agent and a strong acid.
[EN] PROCESS FOR OBTAINING 6-ALKYLIDENANDROST-1, 4-DIENE-3-ONE<br/>[FR] PROCÉDÉ POUR OBTENIR UNE 6-ALKYLIDÈNANDROST-1,4-DIÉN-3-ONE
申请人:CRYSTAL PHARMA S A
公开号:WO2009077454A1
公开(公告)日:2009-06-25
6-alkylidenandrost-1, 4-dien-3-ones of general formula (I), wherein R is H o alkyl; R1 y R2, independently of one another, represent H, OR3, OC(=O)R4 or O-(GPH), wherein R3 is H; C1-C6 alkyl or aryl; R4 is H or C1-C6 alkyl,; and GPH is a hydroxyl protecting group; or R1 and R2, together with the carbon atom to which they are bonded, form a carbonyl group or equivalent or a cyclic ketal; can be obtained by a process comprising subjecting the corresponding 6-alkyliden-4-androsten-3-one to a dehydrogenation reaction in the 1,2 position in the presence of a quinone, a silylating agent and a strong acid.
THERAPIES FOR TREATING CANCER USING COMBINATIONS OF COX-2 INHIBITORS AND AROMATASE INHIBITORS OR COMBINATIONS OF COX-2 INHIBITORS AND ESTROGEN RECEPTOR ANTAGONISTS
申请人:Estok Thomas M.
公开号:US20120015919A1
公开(公告)日:2012-01-19
Described herein are compositions and methods for using these compositions in the treatment of cancer, tumors, and tumor-related disorders in a subject.