N-(2-aminoethyl)acetamide → N-[2-(acetylamino)ethyl]-1-ethyl-7-[(4-fluorophenyl)methyl]-4-hydroxy-2-oxo-1,2-dihydro-1,5-naphthyridine-3-carboxamide

Participants

Reaction Steps

In a similar manner to that described in example 196, from ethyl 1-ethyl-7-[(4-fluorophenyl)methyl]-4-hydroxy-2-oxo-1,2-dihydro-1,5-naphthyridine-3-carboxylate (30 mg, 0.081 mmol) and N-(2-aminoethyl)acetamide (66 mg, 0.648 mmol) was prepared N-[2-(acetylamino)ethyl]-1-ethyl-7-[(4-fluorophenyl)methyl]-4-hydroxy-2-oxo-1,2-dihydro-1,5-naphthyridine-3-carboxamide (21 mg, 60% yield) as a white solid after purification by reverse phase HPLC. 1H NMR (CDCl3) δ 10.31 (br s, 1 H), 8.49 (s, 1 H), 7.38 (s, 1 H), 7.14-7.11 (m, 2 H), 7.01-6.96 (m, 2 H), 6.85 (br s, 1 H), 4.16 (m, 2 H), 4.10 (s, 2 H), 3.54 (m, 2 H), 3.42 (m, 2 H), 1.94 (s, 3 H), 1.20 (m, 3 H); HRMS m/z calcd for C22H24FN4O4: 427.1776 Found: 427.1783.

Provenance & Evidence