1,8-Diazabicyclo(5.4.0)undec-7-ene → 5-Amino-1-cyclopropyl-6,8-difluoro-7-[4-(1,2,3-triazol-1-yl)piperidin-1-yl]-1,4-dihydro-4-oxoquinoline-3-carboxylic acid

関与物質

反応手順

4-(1,2,3-triazol-1-yl)piperidine hydrochloride (126 mg, 0.66 mmol) and DBU (130 mg, 0.85 mmol) were added to a suspension of 5-amino-1-cyclopropyl-6,7,8-trifluoro -1,4-dihydro-4-oxoquinoline-3-carboxylic acid (100 mg, 0.34 mmol) in acetonitrile (10 ml). The reaction mixture was refluxed for 24 hrs and then concentrated to dryness. The residue was diluted with water and thus separated solid was filtered, washed with water, acetonitrile and dried to give 65 mg of the desired product. m.p. 274°-276° C.; 1H NMR (TFA) δ: 9.38 (s, 1H), 8.64 (s, 1H), 8.52 (s, 1H), 5.25 (m, 1H), 4.60 (m, 1H), 4.15 (m, 2H), 3.80 (m, 2H), 2.65 (m, 4H), 1.34-1.70 (m, 4H).

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