(2R,3R,4S,5R,6S)-2,5-Diethynyl-3,4-bis-methoxymethoxy-6-methoxymethoxymethyl-tetrahydro-pyran 在
copper diacetate 作用下,
以
吡啶 为溶剂,
反应 76.0h,
以19%的产率得到2,6:11,15-dianhydro-3-C,14-C-{[2,6-anhydro-3-deoxy-1,4,5-tris-O-(methoxymethyl)-D-glycero-L-gulo-hexitol-3-C,6-C-diyl]bis(buta-1,3-diyne-4,1-diyl)}-3,7,8,9,10,14-hexadeoxy-1,4,5,12,13,16-hexakis-O-(methoxymethyl)-D-erythro-L-ido-L-gulo-hexadeca-7,9-d...