Synthesis of a 1α,25-dihydroxyvitamin D<sub>3</sub>A ring model by an acyl radical cyclization
作者:Duncan Batty、David Crich、Simon M. Fortt
DOI:10.1039/c39890001366
日期:——
The synthesis of (±)-(2), an A ringmodel for 1α,25-dihydroxyvitamin D3 has been achieved in 7 steps from ethyl acetoacetate, with an acylradicalcyclization as the key ring forming step.