反应详情

tert-butyl 5-chloro-1-((5R,7R)-5-methyl-7-(4-nitrobenzoyloxy)-6,7-dihydro-5H-cyclopenta[d]pyrimidin-4-yl)spiro[indoline-3,3′-pyrrolidine]-1′-carboxylate was prepared by the procedures described in Example 1, Step 8, substituting (R)-4-chloro-5-methyl-6,7-dihydro-5H-cyclopenta[d]pyrimidine with (5R,7R)-4-chloro-5-methyl-6,7-dihydro-5H-cyclopenta[d]pyrimidin-7-yl 4-nitrobenzoate, and substituting tert-butyl 5-chlorospiro[indoline-3,4′-piperidine]-1′-carboxylate with tert-butyl 5-chlorospiro[indoline-3,3′-pyrrolidine]-1′-carboxylate. LCMS (APCI+) m/z 339.1 [M+H−Boc-pNO2 benzoic acid]+; Rt=4.74 min.