Ethyl 27-oxo-15-oxa-2,20-diaza­hexa­cyclo­[18.6.1.0^1,8.0^2,6.0^9,14.0^21,26]hepta­cosa-9,11,13,21,23,25-hexa­ene-7-carboxyl­ate

In the title compound, C₂₇H₃₀N₂O₄, the pyrrolidine ring adopts a twisted conformation. The indoline ring system is almost perpendicular to the mean plane of the pyrrolidine ring, making a dihedral angle of 81.7 (8)°. In the crystal, mol­ecules are linked into centrosymmetric dimers with graph-set motif R₂²(16) via pairs of C—H...O hydrogen bonds. The terminal ethyl group of the ester group is disordered over two sets of sites, with a site-occupancy ratio of 0.587 (11):0.413 (11).

Ethyl 8,13-dioxa-21-aza­penta­cyclo­[18.5.1.0^2,7.0^14,19.0^21,25]hexa­cosa-2(7),3,5,14,16,18-hexa­ene-26-carboxyl­ate

In the title compound, C₂₆H₃₁NO₄, the five-membered rings of the central pyrrolizine system adopt N-envelope conformations. The ethyl acetate group adopts an extended conformation. The dihedral angle between the benzene rings is 36.6 (1)°. In the crystal, C—H...O hydrogen bonds form a zigzag chain running along the b-axis directions. The crystal structure is futher consolidated by C—H...π inter­actions.

6-Phenyl­benzo[d]naphtho­[2,3-b]thio­phene

In the title compound, C₂₂H₁₄S, the r.m.s. deviation from the mean plane of the four-fused-ring naphtho­thio­phene unit is 0.056 Å. The dihedral angle between the naphtho­thio­phene plane and the pendant phenyl ring is 67.24 (6)°. In the crystal, weak C—H...π and π–π stacking [minimum centroid–centroid separation = 3.7466 (10) Å] inter­actions are observed, which together lead to (010) sheets.