title: tert-Butyl 6-amino-3,4-dihydro-2H-1,4-benzoxazine-4-carboxyl-ate.
abstract: The title mol-ecule, C(13)H(18)N(2)O(3), contains a benzene ring fused to an oxazine ring and one tert-but-oxy-carbonyl group bound to the N atom of the oxazine ring. A weak intra-molecular C-H⋯O inter-action occurs. In the crystal, inter-molecular N-H⋯O and C-H⋯O hydrogen bonds stack the mol-ecules down the b axis. Weak C-H⋯N contacts connect the stacks, generating a three-dimensional network.
authors: Key Laboratory of Nuclear Medicine, Ministry of Health, Jiangsu Key Laboratory of Molecular Nuclear Medicine, Jiangsu Institute of Nuclear Medicine, Wuxi 214063, People's Republic of China.
authors: Xiao-Bo
authors: XB
authors: Gu
authors: Meng-Jun
authors: MJ
authors: Jiang
authors: Gang-Ming
authors: GM
authors: Cai
authors: Yao-Yuan
authors: YY
authors: Zhou
references: Acta Crystallogr A. 2008 Jan;64(Pt 1):112-22
references: 18156677
references: J Med Chem. 2008 Mar 27;51(6):1695-705
references: 18311900