Water → HCID 85123690, compound

Participants

Reaction Steps

To 2-[(2-{[7-(4-fluoro-benzyl)-9-hydroxy-8-oxo-7,8-dihydro-6H-pyrrolo[3,4-g]quinoline-5-carbonyl]-amino}-ethyl)-phenoxy-phosphinoyloxy]-propionic acid ethyl ester 221 (15 mg, 0.024 mmol) dissolved in acetonitrile (0.10 ml) and water (0.05 ml) was added 1.0 M NaOH (0.072 ml). The reaction mixture was stirred at room temperature for 3 hours, cooled to 0° C., and quenched with 1.0 M HCl (0.1 ml). The mixture was concentrated in vacuo and the resulting residue was redissolved in dimethylsulfoxide, filtered through a glass plug, and purified by reverse phase preparatory HPLC to afford 2-[(2-{[7-(4-fluoro-benzyl)-9-hydroxy-8-oxo-7,8-dihydro-6H-pyrrolo[3,4-g]quinoline-5-carbonyl]-amino}-ethyl)-hydroxy-phosphinoyloxy]-propionic acid 315 (9 mg, 0.014 mmol, 60%). 1H NMR (CD3OD) δ 9.0 (d, 1H), 8.80 (d, 1H), 7.80 (m, 1H), 7.42 (M, 2H), 7.10 (t, 2H), 4.80 (d, 2H), 4.62 (s, 2H), 3.75 (m, 2H), 2.20 (m, 2H), 1.46 (d, 3H). 3P δ 27.8. 19F δ −78.0, −118.0. MS: 532.1 (M+1).

Provenance & Evidence