rac-Ethyl 6-hy-droxy-6-methyl-3-oxo-4-phenyl-1,3,4,5,6,7-hexa-hydro-benzo[c][1,2]oxazole-5-carboxyl-ate.
In the title compound, C(17)H(19)NO(5), the cyclo-hexene ring is in a half-chair conformation and the isoxazole ring in an envelope conformation with the N atom as the flap. The C atoms in the 4- and 6-positions are of the same absolute configuration, whereas the C atom in the 5-position is of the opposite configuration, i.e. (4S*,5R*,6S*). The methyl fragment of the eth-oxy-carbonyl group at position 5 is disordered over two sets of sites in a 0.60:0.40 ratio. The crystal packing displays inter-molecular N-H⋯O and O-H⋯O hydrogen bonds.
Baku State University, Z. Khalilov St. 23, Baku AZ-1148,  Azerbaijan.
Arif I
AI
Ismiyev
Abel M
AM
Maharramov
Bahruz A
BA
Rashidov
Gunay Z
GZ
Mammadova
Rizvan K
RK
Askerov