532983-42-9

Basic information

• Product Name: (25R)-3β-O-[2,4-di-O-(2,3,4-tri-O-benzoyl-α-L-rhamnopyranosyl)-3,6-di-O-pivaloyl-β-D-glucopyranosyl]-26-O-benzoyl-β-D-glucopyranosyl-cholest-5-ene-16,22-dione
• CAS NO: 532983-42-9
• Molecular Weight: 2256.52
• Mol File: 532983-42-9.mol

Chemical Properties

• CAS DataBase Reference: (25R)-3β-O-[2,4-di-O-(2,3,4-tri-O-benzoyl-α-L-rhamnopyranosyl)-3,6-di-O-pivaloyl-β-D-glucopyranosyl]-26-O-benzoyl-β-D-glucopyranosyl-cholest-5-ene-16,22-dione(CAS DataBase Reference)
• NIST Chemistry Reference: (25R)-3β-O-[2,4-di-O-(2,3,4-tri-O-benzoyl-α-L-rhamnopyranosyl)-3,6-di-O-pivaloyl-β-D-glucopyranosyl]-26-O-benzoyl-β-D-glucopyranosyl-cholest-5-ene-16,22-dione(532983-42-9)
• EPA Substance Registry System: (25R)-3β-O-[2,4-di-O-(2,3,4-tri-O-benzoyl-α-L-rhamnopyranosyl)-3,6-di-O-pivaloyl-β-D-glucopyranosyl]-26-O-benzoyl-β-D-glucopyranosyl-cholest-5-ene-16,22-dione(532983-42-9)

Safety Data

• Hazardous Substances Data: 532983-42-9(Hazardous Substances Data)

Upstream product

• 1059649-89-6 (25R)-3β-O-[2,4-di-O-(2,3,4-tri-O-benzoyl-α-L-rhamnopyranosyl)-3,6-di-O-pivaloyl-β-D-glucopyranosyl]-26-hydroxy-cholest-5-ene-16,22-dione 
• 151767-11-2 2,3,4,5-tetra-O-benzoyl-D-glucopyranosyl trichloroacetimidate 

Relevant articles and documents

An improved synthesis of methyl protodioscin: Tautomerization and direct access to the 3-o-substituted kryptogenin

The acid-catalyzed tautomerization of 3-O-substituted kryptogenin 2 was studied, and the effects of acids such as silica gel, TMSOTf, acetic acid, and CDCl3, are discussed. Additionally, a Zn/KI/HOAc reduction based on this tautomerization was adopted, which afforded 2 directly, and provided a facile procedure for the synthesis of methyl protodioscin and other furostanol saponins in a mild way. Copyright