138415-98-2

Upstream product

• 142004-75-9 Benzoic acid (1S,3aS,3bS,8S,10aR,10bS,12aS)-8-(tert-butyl-dimethyl-silanyloxy)-10a,12a-dimethyl-6-oxo-hexadecahydro-6a-aza-benzo[3,4]cyclohepta[1,2-e]inden-1-yl ester 
• 142004-89-5 3ξ,17β-dihydroxy-4-iodo-5-aza-4,5-seco-B-homoandrostan-6-one 3-tert-butyldimethylsilyl ether, 17-benzoate 
• 142004-84-0 3,4-epoxy-17β-hydroxy-5-aza-4,5-seco-B-homoandrostan-6-one benzoate 
• 142004-80-6 Benzoic acid (3S,3aS,5aS,6R,9aR,9bS)-6-but-3-enyl-7-[(E)-hydroxyimino]-3a,6-dimethyl-dodecahydro-cyclopenta[a]naphthalen-3-yl ester 
• 142004-82-8 17β-hydroxy-5-aza-4,5-seco-B-homoandrost-3-en-6-one benzoate 
• 142004-79-3 Benzoic acid (3S,3aS,5aS,6R,9aS,9bS)-6-but-3-enyl-3a,6-dimethyl-7-oxo-dodecahydro-cyclopenta[a]naphthalen-3-yl ester 
• 138415-93-7 Benzoic acid (1S,3aS,3bS,8S,10aR,10bS,12aS)-10a,12a-dimethyl-6-oxo-8-(toluene-4-sulfonyloxy)-hexadecahydro-6a-aza-benzo[3,4]cyclohepta[1,2-e]inden-1-yl ester 
• 138415-91-5 3β,17β-dihydroxy-5-aza-B-homoandrostan-6-one 17-benzoate 
• 98-88-4 benzoyl chloride 
• 99463-59-9 17β-hydroxy-4,5-secoandrost-3-yn-5-one benzoate 
• 17541-44-5 17β-hydroxy-5-oxo-4,5-seco-androst-3-yne 
• 138415-94-8 3α-chloro-17β-hydroxy-5-aza-B-homoandrostan-6-one benzoate 

Relevant academic research and scientific papers

A Novel Stereospecific Rearrangement of 3-Substituted B-Homo 5-Azasteroids to Their A-Nor Analogues. Preparation, Stereochemistry, and Conformational Studies

The novel 3α- and 3β-hydroxy-B-homo-5-azasteroid lactams 4 and 5 were prepared from testosterone.When the hydroxyl group in these compounds is converted into a leaving group, rearrangement to the corresponding A-nor azasteroids occurs under a variety of c

A NOVEL STEREOSPECIFIC REARRANGEMENT OF 3-SUBSTITUTED B-HOMO-5-AZASTEROID LACTAMS TO A-NOR ANALOGUES

B-Homo-5-azasteroid lactams containing nucleofugal substituents in the 3-position (1 and 2) undergo rearrangement via stereospecific ring contractions to afford A-nor analogues 3 and 4.