Tetrafluoro-m-phenylenediamine dihydrochloride → 4-((5-Chloropyridin-2-yl)methoxy)-1-(5-methyl-2,3,4,5-tetrahydro-1h-pyrido[4,3-b]indol-7-yl)pyridin-2(1h)-one dihydrochloride

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Reaction Steps

tert-Butyl 7-(4-((5-chloropyridin-2-yl)methoxy)-2-oxopyridin-1(2H)-yl)-5-methyl-3,4-dihydro-1H-pyrido[4,3-b]indole-2(5H)-carboxylate (108 mg, 0.207 mmol) was deprotected and converted to the dihydrochloride salt according to the procedure of Example 30 (steps e and g) to provide the title compound (99 mg, 97%) as a white solid: mp 290-320° C. dec; 1H NMR (300 MHz, CD3OD) δ 8.61 (d, J=2.1 Hz, 1H), 7.95 (dd, J=8.4, 2.4 Hz, 1H), 7.62 (d, J=7.6 Hz, 2H), 7.58 (d, J=8.4 Hz, 1H), 7.47 (d, J=1.6 Hz, 1H), 7.05 (dd, J=8.3, 1.8 Hz, 1H), 6.36 (dd, J=7.6, 2.2 Hz, 1H), 6.13 (d, J=2.6 Hz, 1H), 5.28 (s, 2H), 4.48 (s, 2H), 3.73 (s, 3H), 3.67 (t, J=6.2 Hz, 2H), 3.02 (t, J=6.2 Hz, 2H); ESI MS m/z 421 [M+H]+; HPLC (Method B) 98.2% (AUC), tR=12.0 min.

Provenance & Evidence