143032-87-5

Basic information

• Product Name: 8,10-bis-<<(1,1-dimethylethyl)dimethylsilyl>oxy>-3,9,10b-trimethyl-7-<1-oxo-3-phenyl-3-(phenylsulfonyl)amino>benzofuro<2,3-g>-1,2-benzisoxazol-4(10bH)-one
• CAS NO: 143032-87-5
• Molecular Weight: 815.147
• Mol File: 143032-87-5.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 8,10-bis-<<(1,1-dimethylethyl)dimethylsilyl>oxy>-3,9,10b-trimethyl-7-<1-oxo-3-phenyl-3-(phenylsulfonyl)amino>benzofuro<2,3-g>-1,2-benzisoxazol-4(10bH)-one(CAS DataBase Reference)
• NIST Chemistry Reference: 8,10-bis-<<(1,1-dimethylethyl)dimethylsilyl>oxy>-3,9,10b-trimethyl-7-<1-oxo-3-phenyl-3-(phenylsulfonyl)amino>benzofuro<2,3-g>-1,2-benzisoxazol-4(10bH)-one(143032-87-5)
• EPA Substance Registry System: 8,10-bis-<<(1,1-dimethylethyl)dimethylsilyl>oxy>-3,9,10b-trimethyl-7-<1-oxo-3-phenyl-3-(phenylsulfonyl)amino>benzofuro<2,3-g>-1,2-benzisoxazol-4(10bH)-one(143032-87-5)

Safety Data

• Hazardous Substances Data: 143032-87-5(Hazardous Substances Data)

Upstream product

• 62495-90-3 7-acetyl-8,10-dihydroxy-3,9,10b-trimethylbenzofuro<2,3-g>-1,2-benzisoxazol-4(10bH)-one 
• 17669-01-1 (+)-usnic acid 
• 77377-52-7 N-methyl-N-tert-butyldimethylsilyl-1,1,1-trifluoroacetamide 
• 143032-88-6 7-acetyl-8,10-bis<<(1,1-dimethylethyl)dimethylsilyl>oxy>-3,9,10b-trimethylbenzofuro<2,3-g>-1,2-benzisoxazol-4(10bH)-one 
• 137623-64-4 Davis' oxaziridine 

Relevant articles and documents

Synthesis of (+)-8-methyl cercosporamide: Stereochemical correlation of natural (-)-cercosporamide with (+)-usnic acid

The absolute configuration of the antifungal antibiotic cercosporamide was established as C-9b-(-)-(S) by correlation with synthetic (+)-8-methylcercosporamide. This was accomplished via conversion of the isoxazole (6) available from (+)-usnic acid. Structure revision of the key isoxazole (6), previously assigned structure (5), is described; some of the 13C-assignments for usnic acid made by previous workers have also been corrected.