Synthesis of 22-oxaspiro[4.5]decane CD-ring modified analogs of 1α,25-dihydroxyvitamin D3
作者:Frederik De Buysser、Lieve Verlinden、Annemieke Verstuyf、Pierre J. De Clercq
DOI:10.1016/j.tetlet.2009.05.005
日期:2009.7
In search of analogs of 1α,25-dihydroxyvitaminD3 featuring a dissociation of calcemic and other activities, a series of stereoisomeric 19-nor-22-oxa derivatives, characterized by a spiro[4.5]decane cyclic system instead of the classical CD-ring system, have been synthesized in an enantioselective way.