Trifluoroacetic acid → (S)-1-((1-hydroxycyclobutyl)(phenyl)methyl)-3-(3-(2-methoxyethoxy)-1H-pyrazolo[4,3-c]pyridin-6-yl)urea

Participants

Reaction Steps

In a manner similar to that described previously (e.g. Example 40, Step 3), (S)-1-((1-hydroxycyclobutyl)(phenyl)-methyl)-3-(3-(2-methoxyethoxy)-1-trityl-1H-pyrazolo[4,3-c]pyridin-6-yl)urea was treated with TFA and triethylsilane in DCM. The product (102) was purified by Reverse phase C-18 HPLC (eluting with Acetonitrile/Water+0.1% TFA). MS: [M+H]+ m/z 412. 1H NMR (500 MHz, DMSO) δ 12.24 (s, 1H), 9.48 (s, 1H), 8.61 (s, 1H), 7.85 (bs, 1H), 7.38 (t, 2H, J=7.5 Hz), 7.36 (s, 1H), 7.27 (t, 2H, J=7.5 Hz), 7.20 (t, 2H, J=7.5 Hz), 4.78 (d, 1H, J=9 Hz), 4.42 (t, 2H, J=4.5 Hz), 3.70 (t, 2H, J=4.5 Hz), 3.30 (s, 3H), 2.12 (1H, m), 2.00 (m, 2H), 1.79 (m, 1H), 1.69 (m, 1H), 1.59 (m, 1H).

Provenance & Evidence