Cyclopentaneethanol → 2-(3,4-Difluorophenyl)-4-(2-cyclopentyl-1-ethoxy)-5-[4-(methylsulfonyl)phenyl]-3(2H)-pyridazinone

関与物質

反応手順

The title compound was prepared according to the method of Example 178, starting with 2-(3,4-difluorophenyl)-4-tosyloxy-5-[4-(methylsulfonyl)phenyl]-3(2H)-pyridazinone in place of 2-(4-fluorophenyl)-4-tosyloxy-5-[4-(methylsulfonyl)phenyl]-3(2H)-pyridazinone and substituting 2-cyclopentyl-1-ethanol in place of 2-ethyl-1-hexanol (yield: 115 mg, 60%). mp 100-101° C. 1H NMR (300 MHz, DMSO-d6) δ 1.00 (m, 2H), 1.38 (m, 2H), 1.57 (m, 7H), 3.30 (s, 3H), 4.42 (t, J=7 Hz, 2H), 7.52 (m, 1H), 7.62 (m, 1H), 7.81 (m, 1H), 7.90 (d, J=9 Hz, 2H), 8.08 (d, J=9 Hz, 2H), 8.22 (s, 1H). MS (APCI+) m/z 475 (M+H)+; (APCI−) m/z 509 (M+Cl)−. Anal. calc. for C24H24F2N2O4S.0.25 H2O: C, 60.17; H, 5.15; N, 5.84. Found: C, 60.12; H, 5.14; N, 5.76.

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