1,8-Diazabicyclo(5.4.0)undec-7-ene → HCID 19006043, compound

Participants

Reaction Conditions

Reaction Steps

3-(1,2,3-triazol-1-yl)pyrrolidinehydrochloride (147 mg, 0.84 mmol) and DBU (128 mg, 0.84 mmol) were added to a suspension of 5-Amino-1-cyclopropyl-6,7-difluoro-8-methoxy-1,4-dihydro-4-oxoquinoline-3-carboxylic acid (100 mg, 0.33 mmol) in pyridine (5 ml). The reaction mixture was heated at 120° C. for 30 hrs, concentrated and the residue was triturated with water. The separated solid was filtered, washed with water and recrystallized from chloroform-hexane. Yield 40 mg; m.p. 208° C.; 1H NMR (TFA) δ: 9.39 (s, 1H), 8.70 (s, 1H), 8.57 (s, 1H), 5.88 (s, 1H), 4.43-4.73 (m, 4H), 4.10 (m, 1H), 3.79 (s, 3H), 2.92 (m, 2H), 1.12-1.58 (m, 4H).

Provenance & Evidence