An Efficient Protocol for the Synthesis of Unsymmetrical Pyrazines. Total Synthesis of Dihydrocephalostatin 1<sup>1</sup>
作者:Chuangxing Guo、Sudhakar Bhandaru、P. L. Fuchs、Michael R. Boyd
DOI:10.1021/ja962646q
日期:1996.1.1
Synthesis of a C14',15' dihydro derivative of the south hexacyclic steroid unit of cephalostatin 1. Part II: Spiroketal synthesis and stereochemical assignment by nmr spectroscopy
作者:Sudhakar Bhandaru、P.L Fuchs
DOI:10.1016/0040-4039(95)01805-r
日期:1995.11
Transformation of aldehyde 3 into 2, a C14',15' dihydro analog of the “South” hexacyclic spiroketal of cephalostatin 1 1 is described. The stereochemistry of 2 was elucidated by NMR spectroscopy.