Novel Synthesis of Castanospermine and 1-Epicastanospermine
摘要:
Polyhydroxylated indolizidines have potential for treatment of HIV, hepatitis C and HSV infection, multiple sclerosis, angiogenesis, cancer, and diabetes. A new synthetic approach to the title compounds from a 5-C-methoxypyranosyl azide has been developed. The route incorporates lid the aldol reaction and a novel catalytic reductive amination cascade to generate the indolizidine ring.