Crystal structure of (2-hy­droxy-5-methyl­phen­yl)(3-methyl-1-phenyl-1H-pyrazolo­[3,4-b]pyridin-5-yl)methanone

In the title compound, C(21)H(17)N(3)O(2), the 2-hy­droxy-5-methyl­phenyl ring and the phenyl ring are inclined to the mean plane of the pyrazolo­pyridine moiety (r.m.s. deviation = 0.013 Å) by 52.89 (9) and 19.63 (8)°, respectively, and to each other by 42.83 (11)°. In the mol­ecule, there are intra­molecular O—H⋯O and C—H⋯N hydrogen bonds, both enclosing an S(6) ring motif. In the crystal, mol­ecules stack along the c-axis direction, forming columns within which there are a number of π–π inter­actions [the inter-centroid distances vary from 3.5278 (10) to 3.8625 (10) Å]. The columns are linked by C—H⋯π inter­actions, forming slabs parallel to (100).