title: 5-Amino-7-(4-bromo-phen-yl)-3,7-di-hydro-2H-thieno[3,2-b]pyran-6-carbo-nitrile 1,1-dioxide.
abstract: In the title compound, C(14)H(11)BrN(2)O(3)S, the 2,3-dihydro-thio-phene ring is almost planar [maximum deviation = 0.006 (1) Å]. The pyran ring is in an envelope conformation [puckering parameters Q = 0.115 (2) Å, θ = 77.5 (10), ϕ = 172.9 (10)°]. The pyran and phenyl rings are approximately perpendicular, making a dihedral angle of -76.4 (2)°. The crystal packing is stabilized by inter-molecular N-H⋯O hydrogen bonds, with the sulfone O atoms acting as acceptors.
authors.affiliation: School of Chemistry and Chemical Engineering, Xuzhou Normal University, Xuzhou 221116, People's Republic of China, and, Key Laboratory of Biotechnology for Medicinal Plants, Xuzhou Normal University, Xuzhou 221116, People's Republic of China.
authors.forename: Chen-Xia
authors.initials: CX
authors.lastname: Yu
authors.forename: Xiao-Dong
authors.initials: XD
authors.lastname: Feng
authors.forename: Bei
authors.initials: B
authors.lastname: Jiang
authors.forename: Cui-Hua
authors.initials: CH
authors.lastname: Wang
authors.forename: Chang-Sheng
authors.initials: CS
authors.lastname: Yao