28421-57-0

Basic information

• Product Name: 3-acetoxy-2'-phenyl-[1,2,4]triazolo[1',2':6,7](6,7-diaza-5,8-etheno-23,24-dinor-cholane)-21,3',5'-trione
• Synonyms: 3-acetoxy-2'-phenyl-[1,2,4]triazolo[1',2':6,7](6,7-diaza-5,8-etheno-23,24-dinor-cholane)-21,3',5'-trione
• CAS NO: 28421-57-0
• Molecular Weight: 545.679
• Mol File: 28421-57-0.mol
• Article Data: 4

Chemical Properties

• CAS DataBase Reference: 3-acetoxy-2'-phenyl-[1,2,4]triazolo[1',2':6,7](6,7-diaza-5,8-etheno-23,24-dinor-cholane)-21,3',5'-trione(CAS DataBase Reference)
• NIST Chemistry Reference: 3-acetoxy-2'-phenyl-[1,2,4]triazolo[1',2':6,7](6,7-diaza-5,8-etheno-23,24-dinor-cholane)-21,3',5'-trione(28421-57-0)
• EPA Substance Registry System: 3-acetoxy-2'-phenyl-[1,2,4]triazolo[1',2':6,7](6,7-diaza-5,8-etheno-23,24-dinor-cholane)-21,3',5'-trione(28421-57-0)

Safety Data

• Hazardous Substances Data: 28421-57-0(Hazardous Substances Data)

Upstream product

• 28421-56-9 3β-acetoxy-5α,8α-(4-phenyl-1,2,4-triazolidine-3,5-dione-1,2-diyl)ergosta-6,22-diene 
• 28421-56-9 3-acetoxy-2'-phenyl-[1,2,4]triazolo[1',2':6,7](6,7-diaza-5,8-etheno-ergost-22-ene)-3',5'-dione 
• 15988-11-1 4-Phenylurazole 
• 1108-03-8 ergosterol acetate 
• 4233-33-4 4-Phenyl-1,2,4-triazolidine-3,5-dione 
• 1108-03-8 ergosteryl acetate 

Downstream Products

• 107717-75-9 3β-acetoxy-22,25-dihydroxy-5α,8α-(3,5-dioxo-4-phenyl-1,2,4-triazolidino)cholesta-6-en-24-one 
• 60283-67-2 (22E)-3β-acetoxy-25-hydroxy-5α,8α-(3,5-dioxo-4-phenyl-1,2,4-triazolidino)cholesta-6,22-dien-24-one 
• 212248-24-3 3β-acetoxy-5α,8α-(3,5-dioxo-4-phenyl-1,2,4-triazolidino)-23-norcholest-6-en-22-aldoxime 
• 212248-25-4 3β-acetoxy-20-(5-bromomethylisoxazol-3-yl)-5α,8α-(3,5-dioxo-4-phenyl-1,2,4-triazolidino)pregn-6-ene 
• 212248-26-5 3β-acetoxy-20-(5-hydroxymethylisoxazol-3-yl)-5α,8α-(3,5-dioxo-4-phenyl-1,2,4-triazolidino)pregn-6-ene 
• 212248-27-6 3β-acetoxy-20-[5-(1-hydroxy-1-methylethyl)isoxazol-3-yl]-5α,8α-(3,5-dioxo-4-phenyl-1,2,4-triazolidino)pregn-6-ene 
• 82268-13-1 3β-tetrahydropyranyloxy-23,24-dinorchola-5,7-dien-22-ol p-toluenesulfonate 
• 125315-50-6 23,24-dinorchola-5,7-diene-3β,22-diol 22-p-toluenesulfonate 
• 125315-52-8 23-(phenylsulfonyl)cholesta-5,7-diene-3β,25-diol 
• 125315-51-7 C₄₃H₆₄O₆S 
• 58050-55-8 (24S)-24,25-dihydroxyvitamin D₂ 
• 58050-55-8 (24R)-24,25-dihydroxyvitamin D₂ 
• 95511-43-6 (22E)-3β,24,25-trihydroxy-5α,8α-(3,5-dioxo-4-phenyl-1,2,4-triazolidino)ergosta-6,22-diene 
• 112670-95-8 (22E)-25-hydroxy-24-oxo-22-dehydrovitamin D₃ 

Relevant articles and documents

A CONVENIENT SYNTHESIS OF 1α,25-DIHYDROXY-28-NORVITAMIN-D2

The title compound was synthesized via the Julia olefination using ring B-diene protected 3β-hydroxy-23,24-bisnorchola-5,7-diene-22-al acetate and the side-chain synthon 2-methyl-4-phenylsulfonyl-2-(tetrahydropyranyloxy)butane.Ring B-deprotection, photoly

Synthesis of diastereomeric 24,25-dihydroxyvitamin D2 and separation of its (24R)- and (24S)-isomers

-