(1R,4R,8R)Carreira dolefin ligand

(1r,4r,8r) carreira dolefin ligand, (1r,4r,8r)-5-benzyl-2-isobutyl-8-methoxy-1,8-dimethyl-2-bicyclo[2.2.2]octa-2,5-diene ; (1r,4r,8r) carreira dolefin ligand ; (1r,4r,8r)-5-benzyl-8-methoxy-1,8-dimethyl-2-(2'-methylpropyl)-bicyclo[2.2.2]octa-2,5-diene ; (1r,4r,8r)-5-benzyl-2-isobutyl-8-methoxy-1,8-dimethylbicyclo[2.2.2]octa-2,5-diene ; (1r,4r,8r)-5-benzyl-2-isobutyl-8-methoxy-1,8-dimethyl-2-bicyclo[2.2.2]octa-2,5-diene