(1R,1'R,3S,3'S)-5,5',10,10'-Tetra-meth-oxy-1,1',3,3'-tetra-methyl-3,3',4,4'-tetra-hydro-1H,1'H-8,8'-bi[benzo[g]isochromene].

ABSTRACT: In the title compound, C(34)H(38)O(6), the methyl groups on each pyran ring exhibit 1,3-cis stereochemistry, established during synthesis by pseudo-axial delivery of hydride during a lactol reduction step. In the crystal structure, the mol-ecule lies on a twofold rotation axis and the torsion angle about the central diaryl bond is 41.3 (1)°. The mol-ecules pack in a herringbone arrangement.

SUBMITTER: Sejberg JJ 

PROVIDER: S-EPMC2961018 | biostudies-literature | 2008 Mar

REPOSITORIES: biostudies-literature