Lithium Hydroxide → HCID 10412181, compound

Participants

Reaction Steps

3-[1-(4-Methoxy-phenyl)-5-β-tolyl-1-H-pyrazol-3-yl]-2-(1-methyl-1H-indol-3-yl)-propionic acid. The title compound was prepared by Method 2 from (1-methyl-1H-indol-3-yl)-acetic acid methyl ester (0.10 g, 0.49 mmol), 3-bromoethyl-1-(4-methoxy-phenyl)-5-p-tolyl-1H-pyrazole (89 mg, 0.25 mmol), sodium hydride (19 mg, 0.49 mmol) and DMF (4.0 mL), giving 3-[1-(4-methoxy-phenyl)-5-p-tolyl-1H-pyrazol-3-yl]-2-(1-methyl-1H-indol-3-yl)-propionic acid methyl ester, which was not isolated. The ester was converted to the acid in situ by adding 2.5 mL (4.9 mmol) LiOH solution giving 57 mg (49%) of 3-[1-(4-methoxy-phenyl)-5-p-tolyl-1H-pyrazol-3-yl]-2-(1-methyl-1H-indol-3-yl)-propionic acid. HPLC: Rt=3.23 (Method B). MS (ES+): mass calculated for C29H27N3O3, 465.21; m/z found 466.2 [M+H]+. 1H NMR (400 MHz, DMSO-d6): 12.15 (brs, 1H), 7.64 (d, J=7.9 Hz, 1H), 7.40 (d, J=8.2 Hz, 1H), 7.32 (s, 1H), 7.17-7.10 (m, 5H), 7.05-7.03 (m, 3H), 6.93 (d, J=8.9 Hz, 2H), 6.38 (s, 1H), 4.22 (dd, J=9.1, 5.9 Hz, 1H), 3.76 (s, 6H), 3.44 (dd, J=14.7, 9.2 Hz, 1H), 3.04 (dd, J=5.9, 14.7 Hz, 1H), 2.27 (s, 3H).

Provenance & Evidence