303128-58-7

Upstream product

• 1239-31-2 3β-acetoxy-5α-androstan-17-one 
• 100-52-7 benzaldehyde 
• 481-29-8 Epiandrosterone 

Downstream Products

• 116660-86-7 3β-acetoxy-16-benzylidene-5α-androstan-17-one 
• 875014-35-0 (16R,5'S)(8β,9α,14α)-3β-hydroxy-5α-androstano[17,16-c]-1'H-5'-phenylpyrazoline 
• 1620967-25-0 1'-acetyl-5'-phenyl-4',5'-dihydro[1,2]-diazolo[4',3':16,17]-5α-androstan-3β-yl acetate 
• 116535-78-5 (3'R,16S)-3β-acetoxy-3'-phenyl-5α-androstan-16-spiro-2'-oxiran-17-one 
• 116535-78-5 (3'S,16R)-3β-acetoxy-3'-phenyl-5α-androstane-16-spiro-2'oxiran-17-one 
• 875014-32-7 (8β,9α,14α)-3β-(trifluoroacetoxy)-16(E)-(phenylmethylene)-5α-androstan-17-one 
• 1428382-37-9 C₄₁H₄₅NO₃S 
• 875014-54-3 (16R,5'S)(8β,9α,14α)-3β-(trifluoroacetoxy)-5α-androstano[17,16-c]-1'H-5'-phenyl-N-phenylpyrazoline 
• 875014-34-9 (16R,5'S)(8β,9α,14α)-3β-(trifluoroacetoxy)-5α-androstano[17,16-c]-1'H-5'-phenyl-N-propionylpyrazoline 
• 875014-33-8 (16R,5'S)(8β,9α,14α)-3β-(trifluoroacetoxy)-5α-androstano[17,16-c]-1'H-5'-phenyl-N-acetylpyrazoline 
• 875014-40-7 (16R,5'S)(8β,9α,14α)-3β-(trifluoroacetoxy)-5α-androstano[17,16-c]-1'H-5'-phenyl-N-methylpyrazoline 
• 875014-57-6 (16R,5'S)(8β,9α,14α)-3β-hydroxy-5α-androstano[17,16-c]-1'H-5'-phenyl-N-phenylpyrazoline 
• 875014-60-1 (16R,5'S)(8β,9α,14α)-3-oxo-5α-androstano[17,16-c]-1'H-5'-phenyl-N-phenylpyrazoline 
• 875014-37-2 (16R,5'S)(8β,9α,14α)-3-oxo-5α-androstano[17,16-c]-1'H-5'-phenyl-N-acetylpyrazoline 

Relevant academic research and scientific papers

Boosting the Catalytic Performance of Metal–Organic Frameworks for Steroid Transformations by Confinement within a Mesoporous Scaffold

Solid-state crystallization achieves selective confinement of metal–organic framework (MOF) nanocrystals within mesoporous materials, thereby rendering active sites more accessible compared to the bulk-MOF and enhancing the chemical and mechanical stability of MOF nanocrystals. (Zr)UiO-66(NH2)/SiO2 hybrid materials were tested as efficient and reusable heterogeneous catalysts for the synthesis of steroid derivatives, outperforming the bulk (Zr)UiO-66(NH2) MOF. A clear correlation between the catalytic activity of the dispersed Zr sites present in the confined MOF, and the loading of the mesoporous SiO2, is demonstrated for steroid transformations.

Synthesis of monomeric and dimeric steroids containing [1,2,4]triazolo[1,5-a]pyrimidines

The synthesis of several monomeric and dimeric steroidal [1,2,4]triazolo[1,5-a]pyrimidines (TPs) derived from steroids are described. These derivatives were prepared from α,β-unsaturated carbonyl compounds through a Claisen Schmidt condensation and rearrangement of the spiro moiety followed by a cycloaddition with 3-amino-1,2,4-triazole. The antiproliferative activity of compounds 7, 13–15 was tested against human cancer cells; several IG50values were below 10?μM.

Synthesis of steroidal derivatives containing substituted, fused and spiro pyrazolines

An efficient and facile synthesis of fused, substituted and spiro pyrazoline steroid derivatives through a cycloaddition reaction of different α,β-unsaturated ketones with hydrazine acetate in acetic acid is reported. Depending on the starting material, the ring closure reaction provided a mixture of two steroidal pyrazoline epimers that were separated and studied by NMR techniques. In one case it was possible to isolate and characterize the hydrazone derivative as the reaction intermediate, which confirms the mechanism proposed in the literature [11,25,26].2014 Published by Elsevier Inc.

Synthesis of novel 16-spiro steroids: Spiro-7′-(aryl)tetrahydro-1H- pyrrolo[1,2-c][1,3]thiazolo-trans-androsterone hybrid heterocycles

The 1,3-dipolar cycloaddition of azomethine ylide derived in situ from the reaction of acenaphthylene-1,2-dione and 1,3-thiazolane-4-carboxylic acid to various exocyclic dipolarophiles synthesized from trans-androsterone and trans-dehydroandrosterone afforded a library of novel spiro[5′.2″] acenaphthylene-1″-one-spiro[16.6′]-(7′-aryl) -tetrahydro-1H-pyrrolo [1,2-c][1,3]thiazolo-trans-androsterone/ dehydroandrosterone hybrid heterocycles respectively. These reactions proceeded stereo-specifically affording a single isomer of the 16-spiro steroids in excellent yields.

Peracid Oxidation of 16-Arylidene- and 16-Alkylidene-17-oxo-steroids

Peracid oxidation of 16-arylidene- and 16-alkylidene-5α-androstan-17-ones (1) - (6) gave no α,β-unsaturated δ-lactones, but resulted mainly in products of direct oxidation of the olefinic double bond.