(2R,3R,5S,6S)-6-allyl-2,5-dimethyltetrahydro-2H-pyran-3-amine 、
(S,Z)-4-(morpholine-4-carbonyloxy)pent-2-enoic acid 在
N,N-二异丙基乙胺 、 Methanaminium,N-[(dimethylamino)(3H-1,2,3-triazolo[4,5-b]pyridin-3-yloxy)methylene]-N-methyl-, hexafluorophosphate(1-) 作用下,
以
二氯甲烷 为溶剂,
以50%的产率得到(2S,3Z)-5-{[(2R,3R,5S,6S)-2,5-dimethyl-6-(prop-2-en-1-yl)tetrahydro-2H-pyran-3-yl]amino}-5-oxopent-3-en-2-yl morpholine-4-carboxylate