[4-(4-methoxy-benzyloxy)-3,5-dimethyl-2-oxo-nona-6,8-dienyl]-phosphonic-acid dimethyl ester 、
(2S,4S,5R,6S,7Z,9S,11S,12R,13E)-5,9,11-tris[[tert-butyl(dimethyl)silyl]oxy]-2,4,6,12-tetramethyl-15-trityloxypentadeca-7,13-dienal 在
barium dihydroxide 作用下,
以
四氢呋喃 、
水 为溶剂,
反应 0.5h,
以1.21 g的产率得到(3Z,5S,6S,7R,9E,11S,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-1,3,9,16,22-pentaen-8-one