title: 4-[(2,4-Dimethyl-1,3-oxazol-5-yl)meth-yl]-4-hydr-oxy-2-methyl-isoquinoline-1,3(2H,4H)-dione.
abstract: In the title isoquinolinedione derivative, C(16)H(16)N(2)O(4), the piperidine ring in the tetra-hydro-isoquinoline unit adopts a half-boat conformation. The essentially planar oxazole ring [maximum deviation = 0.004 (2) Å] is inclined at a dihedral angle of 36.00 (8)° to the tetra-hydro-isoquinoline unit. In the crystal structure, pairs of inter-molecular C-H⋯O and O-H⋯N inter-actions link the mol-ecules into chains incorporating R(2) (2)(9) ring motifs. Two neighbouring chains are further inter-connected by inter-molecular C-H⋯O inter-actions into chains two mol-ecules wide along the a axis.
authors.forename: Hoong-Kun
authors.initials: HK
authors.lastname: Fun
authors.forename: Jia Hao
authors.initials: JH
authors.lastname: Goh
authors.forename: Haitao
authors.initials: H
authors.lastname: Yu
authors.forename: Yan
authors.initials: Y
authors.lastname: Zhang