In the title compound, C(30)H(32)N(2)O(7)·CH(4)O, the tetra-hydro-furan ring and the six-membered ring fused to it both display envelope conformations, with the ring C atom opposite the carbonyl group and the adjacent bridgehead C atom as the flaps, respectively. In the crystal structure, inter-molecular O-H⋯O hydrogen bonds link all moieties into ribbons along [010]. Weak inter-molecular C-H⋯O inter-actions consolidate the crystal packing further.