p. 217 - 222
(2007/10/02)2-(furan-2-yl)-1,3-dioxolane
2,5-dihydro-2,5-dimethoxy-2-furaldehyde dimethyl acetal
1-(3,4-dimethoxybenzyl)-1,2,3,4,5,12b-hexahydropyrrolo-[2',1':3,4]pyrazino[1,2-a][1,3]diazepin-7(8H)-one
1-benzyl-1,2,3,4,5,12b-hexahydropyrrolo[2',1':3,4]pyrazino[1,2-a][1,3]diazepin-7(8H)-one
3,3-dimethyl-1-(3,4-dimethoxybenzyl)-1,3,4,11b-tetrahydro-2H-pyrrolo[2',1':3,4]pyrazino[1,2-a]pyrimidin-6(7H)-one
1-(3,4-dimethoxybenzyl)-1,3,4,11b-tetrahydro-2H-pyrrolo-[2',1':3,4]-pyrazino[1,2-a]pyrimidin-6(7H)-one
1-(3,4,5-trimethoxybenzyl)-1,2,3,10b-tetrahydroimidazo-[1,2-a]pyrrolo[2,1-c]pyrazin-5(6H)-one