title: tert-Butyl 3-amino-2-methyl-6,7-dihydro-2H-pyrazolo[4,3-c]pyridine-5(4H)-carboxyl-ate.
abstract: In the mol-ecule of the title compound, C(12)H(20)N(4)O(2), the dihydro-piperidine ring assumes a half-chair conformation. In the crystal, cllassical N-H⋯O and N-H⋯N inter-molecular hydrogen bonds link mol-ecules into double chains along the a axis.
authors.affiliation: Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences, and Peking Union Medical College, Beijing 100050, People's Republic of China.
authors.forename: Xin
authors.initials: X
authors.lastname: Guo
authors.forename: Xiao Guang
authors.initials: XG
authors.lastname: Bai
authors.forename: Yi Liang
authors.initials: YL
authors.lastname: Li
authors.forename: Yu Cheng
authors.initials: YC
authors.lastname: Wang