Methyl 9-hy­droxy-15-methyl-2-oxo-11-(pyren-1-yl)-10-oxa-15-aza­tetra­cyclo­[7.6.0.0^1,12.0^3,8]penta­deca-3(8),4,6-triene-12-carboxyl­ate

In the title compound, C₃₂H₂₅NO₅, the furan and pyrrole rings each adopt an envelope conformation, the respective flap atoms being the C atom bearing the pyrene substituent and the CH₂ atom adjacent to the N atom. The mol­ecular conformation is stabilized by an intra­molecular O—H...N hydrogen bond. In the crystal, C—H...O contacts link the mol­ecules, forming a two-dimensional network parallel to (001).

Methyl 8-bromo-3-[1-(4-meth­oxy­phen­yl)-4-oxo-3-phenyl­azetidin-2-yl]-1-methyl-1,2,3,3a,4,9b-hexa­hydro­chromeno[4,3-b]pyrrole-3a-carboxyl­ate

In the title compound, C₃₀H₂₉BrN₂O₅, the β-lactam ring is essentially planar, with the O atom displaced from this plane by 0.856 (9) Å, and forming dihedral angles of 24.35 (13) and 89.42 (14)° with the planes of the benzene substituent groups on this ring. The tetra­hydro­pyran ring adopts an envelope conformation with the C atom bearing the β-lactam ring as the flap. In the crystal, weak C—H...O hydrogen bonds with carboxyl and tetra­hydro­pyran O-atom acceptors give rise to a chain structure extending along the b-axis direction.