5-Methyl-N-(1,3-thia­zol-2-yl)isoxazole-4-carboxamide

In the title compound, C₈H₇N₃O₂S, the dihedral angle between the thia­zol and isoxazole rings is 34.08 (13)°. In the crystal, the mol­ecules are linked by pairs of N—H...N hydrogen bonds, forming inversion dimers, and C—H...O inter­actions, resulting in chains along the b-axis direction.

6-Amino-2-methyl-8-phenyl-1,2,3,4-tetra­hydro­iso­quinoline-5,7-dicarbo­nitrile

In the title compound, C₁₈H₁₆N₄, the dihedral angle between the benzene and phenyl rings is 61.40 (4)°. In the crystal, mol­ecules are linked by N—H...N(nitrile) hydrogen bonds, forming inversion dimers. The dimers are further linked by N—H...N(amine) hydrogen bonds, and both units are arranged almost perpendicular to each other [angle between dimer mean planes = 84.43 (12)°]. This arrangement is extended to form a ladder-like structure parallel to the c axis.