Hexahydro-1,4-diazepine → 3-Ethoxycarbonyl-7,9-difluoro-1-methyl-4-oxo-8-(perhydro-1,4-diazepin-1-yl)-1,4-dihydro-benzo[b][1,8]naphthyridine

Participants

Reaction Steps

The 3-ethoxycarbonyl-7,9-difluoro-1-methyl-4-oxo-8-(perhydro-1,4-diazepin-1-yl)-1,4-dihydrobenzo[b][1,8]naphthyridine was prepared under the conditions of Example 3, but starting from 2 g of 3-ethoxycarbonyl-7,8,9-trifluoro-1-methyl-4-oxo-1,4-dihydro-benzo[b][1,8]naphthyridine and 2 g of hexahydro-1,4-diazepine. 2 g of 3-ethoxycarbonyl-7,9-difluoro-1-methyl-4-oxo-8-(perhydro-1,4-diazepin-1-yl)-1,4-dihydro-benzo[b][1,8]naphthyridine are obtained in the form of a yellow solid melting at 226° C.

Provenance & Evidence