Piperidin-4-ol → (3-(3,4-difluorophenyl)-5-methyl-4,5,6,7-tetrahydro-1H-pyrazolo[4,3-c]pyridin-1-yl)(4-hydroxypiperidin-1-yl)methanone

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Compound 45 was prepared according to the procedure described for the synthesis of compound 37 by replacing intermediate 19 with intermediate 15, and replacing tert-leucine methyl amide with 4-hydroxypiperidine. 1H NMR (CDCl3) δ 7.46-7.51 (m, 1H), 7.32-7.36 (m, 1H), 7.20 (q, J=8.9 Hz, 1H), 3.96-4.08 (m, 3H), 3.60 (s, 2H), 3.41-3.47 (m, 2H), 3.08 (t, J=5.6 Hz, 2H), 2.78 (t, J=5.8 Hz, 2H), 2.54 (s, 3H), 1.97-2.01 (m, 2H), 1.63-1.72 (m, 2H). LCMS (+ESI) m/z=377 [M+H]+.

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