反应详情

tert-butyl 5-(2-ethoxy-2-oxoethyl)spiro[indoline-3,4′-piperidine]-1′-carboxylate was prepared by the procedures described in Example 1, Step 2, substituting tert-butyl 5-chlorospiro[indole-3,4′-piperidine]-1′-carboxylate with butyl 5-(2-ethoxy-2-oxoethyl)spiro[indole-3,4′-piperidine]-1′-carboxylate. LCMS (APCI+) m/z 275.2 [M+H−Boc]+; Rt=3.58 min.