[2,3]-Wittig Sigmatropic Rearrangement of Steroidal 16β-Propargyl Ethers for the Synthesis of 25-Hydroxyvitamin D Side Chain Analogues
作者:Juan R. Granja
DOI:10.1080/00397919108019809
日期:1991.10
Abstract An efficient [2,3]-Wittigsigmatropicrearrangement of the pregnadiene derivative 2b allowed the one-step introduction of a side chain with the natural (20R) chirality and the 25-hydroxy group of the principal metabolites of vitamin D.