Crystal and molecular structure of 2-(7-cyanonorcaran-7-yl)-5-(ethoxycarbonyl)-4,5,6,11b-tetrahydro(?4-1,2,4-oxadiazolino)-[2,3-a]-?-carboline, C23H24N4O3

Abstract

The structure of the title compound, C23H24N4O3, was determined by X-rays.M r =404.47, orthorhombic, space groupPna21; unit cell dimensionsa=9.0386(4),b=28.0249(14),c=7.8936(9) A,V c =1999.49(3) A3,Z=4,D x =1.344 Mg m−1. CuKα radiation (graphite crystal monochromator, λ=1.54178 A),μ(CuKα)=0.699 mm−1,F(000)=856,T=295 K. Final conventionalR-factor=0.030,R w =0.037 for 3215 unique reflections and 366 variables. The structure was solved by automated rotation functions in vector space, usingDirdif. The absolute configuration of the structure is reported.