title: Methyl 2-acetamido-2-(4-hy-droxy-2-methyl-1,3-dioxo-1,2,3,4-tetra-hydro-isoquinolin-4-yl)-4-methyl-penta-noate.
abstract: In the isoquinoline ring system of the title mol-ecule, C(19)H(24)N(2)O(6), the N-heterocyclic ring is in a half-boat conformation. The mol-ecular structure is stabilized by an intra-molecular O-H⋯O hydrogen bond, which generates an S(7) ring motif. In the crystal, mol-ecules are linked via inter-molecular bifurcated N-H⋯(O,O) and weak C-H⋯O hydrogen bonds into a three-dimensional network.
authors.forename: Hoong-Kun
authors.initials: HK
authors.lastname: Fun
authors.forename: Ching Kheng
authors.initials: CK
authors.lastname: Quah
authors.forename: Kai
authors.initials: K
authors.lastname: Xu
authors.forename: Yan
authors.initials: Y
authors.lastname: Zhang