Sodium hydride → 7-(Tert-butyl)-3-(2,6-difluorophenyl)-6-((1-ethyl-1h-1,2,4-triazol-5-yl)methoxy)-[1,2,4]triazolo[4,3-b]pyridazine

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Reaction Steps

This compound was prepared from 6-chloro-3-(2,6-difluorophenyl)-7-(1,1-dimethylethyl)-1,2,4-triazolo[4,3-b]pyridazine and (2-ethyl-2H-1,2,4-triazol-3-yl)methanol following the procedure (sodium hydride, DMF) described in WO 98/04559. Data for the title compound: m.p. 182° C.; 1H NMR (400 MHz, CDCl3) δ1.39-1.45 (12H, m), 4.10-4.16 (2H, m), 5.46 (2H, s), 7.09-7.15 (2H, m), 7.52-7.59 (1H, m), 7.92 (1H, s), 8.00 (1H, s); MS (ES30) m/e 414 [MH]+; Anal. Found: C, 58.19; H, 5.05; N, 23.80%. C20H21F2N7O requires: C, 58.10; H, 5.12; N, 23.72%.

Provenance & Evidence