title: (1S,8R,15S,19R)-17-Benzyl-17-aza-penta-cyclo-[6.6.5.0(2,7).0(9,14).0(15,19)]nona-deca-2(7),3,5,9(14),10,12-hexa-ene chloro-form monosolvate.
abstract: In the title compound, C(25)H(23)N·CHCl(3), the dihydro-anthracene unit is bent with a dihedral angle between the benzene rings of 57.82 (8)°. The N atom of the pyrrolidine heterocycle, which has an envelope conformation with the N atom as the flap, exhibits a pronounced pyramidalization [Σ(C-N-C) = 328.07°], indicating an accentuated N-donor character. In the crystal, this behaviour is evident by the C-H⋯N hydrogen bond involving a solvent mol-ecule and the N atom. The absolute configuration at the C-atom fused positions of the pyrrolidine group were crystallographically confirmed to be S and R.
authors.affiliation: Laboratoire Hétérochimie Fondamentale et Appliquée, UMR CNRS 5069, Université Paul Sabatier, 118 route de Narbonne, 31062 Toulouse Cedex 9,  France.
authors.forename: Ielyzaveta
authors.initials: I
authors.lastname: Bratko
authors.forename: Sonia
authors.initials: S
authors.lastname: Ladeira
authors.forename: Nathalie
authors.initials: N
authors.lastname: Saffon
authors.forename: Emmanuelle
authors.initials: E
authors.lastname: Teuma
authors.forename: Montserrat
authors.initials: M
authors.lastname: Gómez