苯乙酮 、 isobutylcarbonic 6,7,13-tris-trimethylsilyl monic anhydride 在
lithium diisopropyl amide 作用下,
生成 (E)-3-Methyl-4-{(2S,3S,4R,5S)-5-[(2S,3S)-3-((1R,2S)-1-methyl-2-trimethylsilanyloxy-propyl)-oxiranylmethyl]-3,4-bis-trimethylsilanyloxy-tetrahydro-pyran-2-yl}-but-2-enoic acid 1-phenyl-vinyl ester 、
(1Z,4E)-1-Hydroxy-5-methyl-6-{(2S,3S,4R,5S)-5-[(2S,3S)-3-((1R,2S)-1-methyl-2-trimethylsilanyloxy-propyl)-oxiranylmethyl]-3,4-bis-trimethylsilanyloxy-tetrahydro-pyran-2-yl}-1-phenyl-hexa-1,4-dien-3-one