4-硝基苯甲酰氯 、
tert-butyl 4-((5R,7R)-7-hydroxy-5-methyl-6,7-dihydro-5H-cyclopenta[d]pyrimidin-4-yl)piperazine-1-carboxylate 、
三乙胺 、
碳酸氢钠 在
二氯甲烷 、
Sodium sulfate-III 、
乙酸乙酯 、 hexanes 、
tert-butyl 4-((5R,7R)-5-methyl-7-((4-nitrobenzoyl)oxy)-6,7-dihydro-5H-cyclopenta[d]pyrimidin-4-yl)-piperazine-1-carboxylate 、
tert-butyl 4-((5R,7S)-5-methyl-7-((4-nitrobenzoyl)oxy)-6,7-dihydro-5H-cyclopenta[d]pyrimidin-4-yl)-piperazine-1-carboxylate 作用下,
以
二氯甲烷 为溶剂,
反应 16.17h,
以to give tert-butyl 4-((5R,7R)-5-methyl-7-(4-nitrobenzoyloxy)-6,7-dihydro-5H-cyclopenta[d]pyrimidin-4-yl)piperazine-1-carboxylate (8.55 g, 84.5% yield) as a foam的产率得到tert-butyl 4-((5R,7R)-5-methyl-7-((4-nitrobenzoyl)oxy)-6,7-dihydro-5H-cyclopenta[d]pyrimidin-4-yl)-piperazine-1-carboxylate