2-丁烯-1,4-二醇

cis-1-(benzyloxy)-4-(trityloxy)-2-butene

(cis)-1-benzyloxy-4-(tert-butyldimethyl)silyloxy-2-butene

4-benzyloxy-1-O-tetrahydropyranyl-2-Z-buten-1-ol

苯甲醛