Abstract: | The solid and solution structures of a new optically active aminopyridine compound, 2‐(1S)‐(+)‐10‐camphorsulfonamino]‐6‐aminopyridine (S)‐csaap], 1 , are reported. Crystal data: space group P21, a = 8.9729 (5), b = 10.9447 (6), c = 36.693 (2) Å, β = 96.435 (1)°, V = 3580.8 (3) Å3, Z = 8, R1 = 0.0673 and wR2 = 0.1600 with I > 2σ(I). This chiral compound shows an unprecedented cocrystallization of four stereoisomers, which are characterized by X‐ray crystallography and NMR spectroscopy. |