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The title compound crystallizes with two independent mol­ecules in the asymmetric unit. In the crystal, mol­ecules are linked by N—H⋯O hydrogen bonds, C—H⋯π, I⋯S and I⋯I inter­actions into a three-dimensional network., Two crystallographically independent mol­ecules (A and B) are present in the asymmetric unit of the title compound, C11H9IN2OS, which differ mainly in the dihedral angle between the phenyl and thia­zole rings [38.94 (16) and 32.12 (15)°, respectively]. In the crystal, the mol­ecules form ⋯A⋯B⋯A⋯B⋯ chains along the [001] and [010] directions through moderate N—H⋯O hydrogen bonds and C—H⋯π inter­actions, respectively. The overall three-dimensional network is formed by I⋯I and I⋯S inter­actions. Hirshfeld surface analysis indicates that the most important contributions to the crystal packing are from H⋯C/C⋯H (26.2%), H⋯H (20.9%), H⋯I/I⋯H (19.4%) and H⋯O/O⋯H (6.8%) inter­actions.

The title compound, C30H44O3[systematic name: 6aR,6 bR,8aS,9aR,12aR,14bR)-4,4,6a,6;b,8a,14b-hexamethyl-12-methyleneicosahydro-3H-phenanthro[1′,2′:6,7]indeno[2,1-b]furan-3,11(2H)-dione], is a triterpene lactone, which was isolated from dichloromethane extract ofElaeodendron trichotomum(Turcz.) Lundell (celastraceae) stem bark. The compound has a lupane skeleton and consists of four fused six-membered rings and two five-membered rings. In the crystal, molecules are linked by weak C—H...O hydrogen bonds into a three-dimensional network. The configuration of ochraceolide A was proposed based on analogue compounds which belong to the lupane type.

In the title salt, each cation shows a moderate distortion between the planes of the amide groups and the quinolinium rings. The tri­fluoro­methane­sulfonate anions are linked to organic cations via N—H⋯O hydrogen-bonding inter­actions involving the NH amide groups. In the crystal, weak C—H⋯O hydrogen bonds and π-stacking inter­actions between the quinolinium and phenyl rings link the organic cations into chains., In the title compound, C23H18N3O3 +·CF3SO3 −, the asymmetric unit contains two crystallographically independent organic cations with similar conformations. Each cation shows a moderate distortion between the planes of the amide groups and the quinolinium rings with dihedral angles of 14.90 (2) and 31.66 (2)°. The quinolinium and phenyl rings are slightly twisted with respect to each other at dihedral angles of 6.99 (4) and 8.54 (4)°. The tri­fluoro­methane­sulfonate anions are linked to the organic cations via N—H⋯O hydrogen-bonding inter­actions involving the NH amide groups. In the crystal, the organic cations are linked by weak C—H⋯O(nitro group) inter­actions into supramol­ecular chains propagating along the b-axis direction.

In the title compound, C23H16O2S, the thiophene group is rotationally disordered into two fractions almost parallel to each other, with occupation factors of 0.523 (7) and 0.477 (7), and subtending dihedral angles of 10.5 (5) and 9.3 (5)°, respectively, to the thiophene group. The molecules are held together by weak C—H...O and C—H...π hydrogen bonds, producing a laminar arrangement, which are further connected in a perpendicular fashion by S...π contacts [S...centroid = 3.539 (8) and 3.497 (8) Å]. In spite of the presence of the entended pyrene group, the structure does not present any parallel π–π stacking interactions. The structure was refined as an inversion twin.