title: 1,6,6-Trimethyl-1H-chromeno[6,7-d]thia-zol-2(6H)-one.
abstract: The title compound, C(13)H(13)NO(2)S, was prepared by a thermocyclization reaction from 3-methyl-6-(2-methyl-but-3-yn-2-yl-oxy)benzo[d]thia-zol-2(3H)-one. In the crystal structure, the methyl-thia-zole unit is planar, while the pyran ring assumes a screw-boat conformation. Intra-molecular C-H⋯O hydrogen bonding helps to stabilize the molecular structure.
authors.affiliation: Department of Medicinal Chemistry, School of Pharmacy, Fudan University, Shanghai 200032, People's Republic of China.
authors.forename: Jian
authors.initials: J
authors.lastname: Tang
authors.forename: Yang
authors.initials: Y
authors.lastname: Wang
authors.forename: Bei-Na
authors.initials: BN
authors.lastname: Zhang
authors.forename: Peng
authors.initials: P
authors.lastname: Xia