(3Z,5S,6S,7R,11R,13S,14R,15S,16Z,18S,20S,21R,22E)-6-(4-methoxybenzyloxy)-14,18,20-tris(tert-butyldimethylsilyloxy)-5,7,11,13,15,21-hexamethyl-24-(trityloxy)tetracosa-1,3,16,22-tetraen-8-one 在
lithium tri-t-butoxyaluminum hydride 作用下,
以
四氢呋喃 为溶剂,
以91%的产率得到(3Z,5S,6S,7S,8R,11R,13S,14R,15S,16Z,18S,20S,21R,22E)-6-(4-methoxybenzyloxy)-14,18,20-tris(tert-butyldimethylsilyloxy)-5,7,11,13,15,21-hexamethyl-24-(trityloxy)tetracosa-1,3,16,22-tetraen-8-ol