Abstract
In the title compound, C17H21N3O, the C-N bond lengths in the guanidine unit are 1.2889 (19), 1.3682 (19) and 1.408 (2) Å, indicating double- and single-bond character. The N-C-N angles are 115.10 (13), 119.29 (15) and 125.61 (14)°, showing a deviation of the CN3 plane from an ideal trigonal-planar geometry. In the crystal, non-classical C-H⋯O hydrogen bonds between methyl H atoms and meth-oxy O atoms are present, generating centrosymmetric dimers running in the [101] direction.