Novel Synthesis of Bis(phosphonic acid)−Steroid Conjugates
作者:Philip C. B. Page、Michael J. McKenzie、James A. Gallagher
DOI:10.1021/jo001489h
日期:2001.6.1
An efficient synthesis has been realized for several members of a new class of potential bone resorption inhibitors consisting of steroidal oestrogenic units linked at the 3 and 17 positions to a geminal bisphosphonate moiety through an ester linkage of variable length. The convergent synthesis utilizes benzyl bisphosphonates, transesterification, and Meldrum's acid chemistry and has the potential