title: Tert-butyl 3-oxo-2,3,4,5,6,7-hexa-hydro-1H-pyrazolo[4,3-c]pyridine-5-carboxyl-ate.
abstract: In the title compound, C(11)H(17)N(3)O(3), the pyrazole ring is approximately planar, with a maximum deviation of 0.005 (2) Å, and forms a dihedral angle of 5.69 (13)° with the plane through the six atoms of the piperidine ring. In the crystal, pairs of inter-molecular N-H⋯O hydrogen bonds form dimers with neighbouring mol-ecules, generating R(2) (2)(8) ring motifs. These dimers are further linked into two-dimensional arrays parallel to the bc plane by inter-molecular N-H⋯O and C-H⋯O hydrogen bonds.
authors.forename: Tara
authors.initials: T
authors.lastname: Shahani
authors.forename: Hoong-Kun
authors.initials: HK
authors.lastname: Fun
authors.forename: R Venkat
authors.initials: RV
authors.lastname: Ragavan
authors.forename: V
authors.initials: V
authors.lastname: Vijayakumar
authors.forename: S
authors.initials: S
authors.lastname: Sarveswari