The title compound, C23H35NO2, is an amide derivative of the lactone (+)-sclareolide, and was synthesized from natural sclareol. In the mol-ecular structure, the two six-membered rings (A and B) of the labdane skeleton are trans-fused, and adopt chair conformations. There is an intra-molecular N-H⋯O hydrogen bond present forming an S(7) ring motif. In the crystal, O-H⋯O hydrogen bonds link the mol-ecules into helical chains propagating along the b-axis direction. The chains are linked via C-H⋯π inter-actions, forming a three-dimensional structure.
Keywords: C—H⋯π interactions; crystal structure; hydrogen bonding; sclareol; sclareolide.