91934-94-0

Upstream product

• 7758-89-6 copper(I) chloride 
• 586-77-6 4-bromo-N,N-dimethylaniline 
• 33403-21-3 3,3-ethylendioxy-5α,10α-epoxy-17α-(trimethylsilyloxy)-estr-9(11)-en-17β-carbonitrile 

Downstream Products

• 1094602-02-4 11β-[4-(N,N-dimethylamino)phenyl]-3,3-ethylenedioxy-5,17α-bis[(trimethylsilyl)oxy]-5α-estr-9-en-17β-carbonitrile 
• 198414-30-1 Telapristone 
• 198414-31-2 Telapristone acetate 
• 159811-51-5 CDB-3236 
• 126784-99-4 ulipristal acetate 

Relevant academic research and scientific papers

INDUSTRIAL METHOD FOR THE SYNTHESIS OF 17-ACETOXY-11beta-[4-(DIMETHYLAMINO)-PHENYL]-21-METHOXY-19-NORPREGNA-4,9-DIEN-3,20-DIONE AND THE KEY INTERMEDIATES OF THE PROCESS

The present invention relates to a process for the synthesis of the known 17-acetoxy-11-β-[4-(dimethyl amino)-phenyl]-21-methoxy-19-norpregna-4,9-dien-3,20-dione (further on CDB-4124) of formula (I) from 3,3-[1,2-ethandiyl-bis(oxy)]-oestr-5(10),9(11)-dien

Structural modification of 19-norprogesterone I: 17-α-substituted-11-β-substituted-4-aryl and 21-substituted 19-norpregnadienedione as new antiprogestational agents

The present invention relates, inter alia, to compounds having the general formula: in which: R1 is a member selected from the group consisting of —OCH3, —SCH3, —N(CH3)2, —NHCH3, —NC4