A short and efficient synthesis of 1α, 25-dihydroxyvitamin D3 A-ring synthon starting from diketene, acrolein and ethyl malonate by using palladium-catalyzed cyclization of the (Z)-enol triflate is described.
介绍了一种以二
乙烯、
丙烯醛和
丙二酸乙酯为原料,通过
钯催化环化 (Z)- 烯醇三酸酯,简短高效地合成 1δ,25-二羟基
维生素 D3 A 环合成物的方法。