(2R,3S,4R,5R,7S,9S,13S,14R,E)-5,7,9-tris(tert-butyldimethylsilyloxy)-3-(4-methoxybenzyloxy)-2,4-dimethyl-14-((R)-5-oxo-tetrahydrofuran-2-yl)-13-(trimethylsilyloxy)pentadec-10-enal 、 (2E,6S,7R,8S,9S,14S,15S,16E,18S,19R,20E,22S,23R,25S)-methyl 9,15,19,22,23-pentakis(tert-butyldimethylsilyloxy)-25-(4-methoxybenzyloxy)-2,6,8,14,18,20-hexamethyl-7-(triethylsilyloxy)octacosa-2,12,16,20,27-pentaenoate 生成