rac-1-[6-Hydroxy-4-(4-methoxyphenyl)-3,6-dimethyl-4,5,6,7-tetrahydro-2H-indazol-5-yl]ethanone

rac-1-[6-Hydroxy-4-(4-methoxyphenyl)-3,6-dimethyl-4,5,6,7-tetrahydro-2H-indazol-5-yl]ethanone

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The title compound, C18H22N2O3, represents a (4S,5R,6S)-stereoisomer, crystallizing as a racemate in a centrosymmetric space group.The six-membered aliphatic ring adopts a half-chair conformation, with the hydroxy- and acetyl-substituted C atoms deviating by 0.458 (2) and −0.

366 (2) Å, respectively, from the plane defined viqua-f4 by other four ring atoms.The pyrazole ring is essentially here planar [r.m.

s deviation = 0.004 (2) Å].In the crystal, the molecules are linked into chains along the b axis by N—H.

N hydrogen bonds.The chains are linked by O—H.N hydrogen bonds into layers parallel to the bc plane.