title: Ethyl 3-amino-4H-thieno[2,3-b]pyridine-2-carboxyl-ate.
abstract: The mol-ecule of the title compound, C(10)H(10)N(2)O(2)S, is essentially planar, except for the ethyl group, which is twisted away from the carboxyl plane by -90.5 (3)°. In the crystal structure, mol-ecules are linked into a zigzag sheet propagating along the b axis by inter-molecular N-H⋯O and N-H⋯N hydrogen bonds.
authors.affiliation: State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, People's Republic of China.
authors.forename: Ren-Lin
authors.initials: RL
authors.lastname: Zheng
authors.forename: Wen-Qin
authors.initials: WQ
authors.lastname: Zhang
authors.forename: Luo-Ting
authors.initials: LT
authors.lastname: Yu
authors.forename: Sheng-Yong
authors.initials: SY
authors.lastname: Yang
authors.forename: Li
authors.initials: L
authors.lastname: Yang