Crystal structure of methyl 4-(4-isopropylphenyl)-2,7,7-trimethyl-5-oxo-1,4,5,6,7,8-hexahydro-quinoline-3-carboxylate, C₂₃H₂₉NO₃

C 23 H 29 NO 3 , monoclinic, P 2 1 / n (no. 14), a = 9.531(5) Å, b = 19.245(11) Å, c = 11.902(7) Å, β = 107.003(10)°, Z = 4, V = 2088(2) Å 3 , R gt ( F ) = 0.0525, wR ref ( F 2 ) = 0.1512, T = 296 K.