(1S,2R)-2-((2-methylbenzyl)(2,4,6-trimethylbenzyl)amino)-1-phenylpropyl-2-chloroacetate 、
(3aR,4S,6R,6aS)-6-(3-(4-methoxybenzyl)-3,4-dihydro-2,4-dioxopyrimidin-1(2H)-yl)-tetrahydro-2,2-dimethylfuro[3,4-d][1,3]dioxole-4-carbaldehyde 在
三乙胺 、
双环己基(三氟甲烷磺酰氧基)硼烷 作用下,
以
1,1-二氯乙烷 、
二氯甲烷 为溶剂,
反应 2.0h,
以90%的产率得到[(1S,2R)-2-[(2-methylphenyl)methyl-[(2,4,6-trimethylphenyl)methyl]amino]-1-phenylpropyl] (2R,3R)-3-[(3aR,4R,6R,6aR)-4-[3-[(4-methoxyphenyl)methyl]-2,4-dioxopyrimidin-1-yl]-2,2-dimethyl-3a,4,6,6a-tetrahydrofuro[3,4-d][1,3]dioxol-6-yl]-2-chloro-3-hydroxypropanoate