4-(N-Boc-amino)piperidine → HCID 59851708, compound

Participants

Reaction Steps

In a manner similar to that described for Method N, 2-(3,4-dimethoxy-phenylamino)-6-oxo-6,7-dihydro-5H-benzo[b]pyrimido[4,5-d]azepine-10-carboxylic acid (I-43) and piperidin-4-yl-carbamic acid tert-butyl ester were converted to {1-[2-(3,4-dimethoxy-phenylamino)-6-oxo-6,7-dihydro-5H-benzo[b]pyrimido[4,5-d]azepine-10-carbonyl]-piperidin-4-yl}-carbamic acid tert-butyl ester, which was subsequently deprotected according to Method K. Purification by C-18 RP LC-MS chromatography afforded I-74 (19%): HRMS Calcd. for C26H28N6O4: 489.2250, Found 489.2253.

Provenance & Evidence