(6bS*,14R*,14aR*)-Methyl 14-(4-methyl­phen­yl)-7-oxo-6b,6c,7,12b,14,14a-hexa­hydro-1H-pyrano[3,2-c:5,4-c′]dichromene-14a-carboxyl­ate

In the title compound, C₂₈H₂₂O₆, the chromeno ring system is almost planar, with a dihedral angle between the mean planes of the pyran and benzene rings of 1.87 (8)°. The pyran ring bearing the methyl­phenyl substituent has a half-chair conformation while the other pyran ring has an envelope conformation with the tetra­substituted C atom as the flap. The benzene ring of the chromeno ring system is inclined to the benzene ring fused to the latter pyran ring by 74.66 (9)°. These aromatic rings are inclined to the 4-methyl­phenyl ring by 52.67 (9) and 66.63 (10)°, respectively. In the crystal, mol­ecules are linked via C—H...O hydrogen bonds, forming a two-dimensional network parallel to the bc plane.

(1′S,12′R,13′S,17′S)-15′,15′-Dimethyl-1,2-dihydro-11′,14′,16′,18′-tetra­oxa-7′-aza­spiro­[indole-3,8′-penta­cyclo­[10.6.0.0^2,9.0^3,7.0^13,17]octa­deca­ne]-2,10′-dione

In the title compound, C₂₂H₂₄N₂O₆, the indole ring has a twist conformation and the tetra­hydro-2H-pyran-2-one ring a half-chair conformation. One of the pyrrolidine rings adopts an envelope conformation on the N atom, while the other has a twist conformation; the `butterfly' angle between their mean planes is 62.98 (11)°. The dioxolane ring adopts a twist conformation and the tetra­hydro­furan ring has an envelope conformation on the C atom in the fused tetra­hydro-2H-pyran-2-one ring adjacent to the O atom of the tetra­hydro­furan ring. The `butterfly' angle between the mean planes of these two five-membered rings is 69.14 (10)°. In the crystal, mol­ecules are linked by N—H...O hydrogen bonds, forming chains along the a axis.