![1-(11,12,14,14a-tetrahydro-9H,13H-pyrazino[2,1-c]pyrrolo[1,2-a][1,4]benzodiazepin-13-yl)ethanone](/structure/144109-13-7.png)
1-(11,12,14,14a-tetrahydro-9H,13H-pyrazino[2,1-c]pyrrolo[1,2-a][1,4]benzodiazepin-13-yl)ethanone
![1-(11,12,14,14a-tetrahydro-9H,13H-pyrazino[2,1-c]pyrrolo[1,2-a][1,4]benzodiazepin-13-yl)ethanone](/structure/144109-13-7.png)
1-(11,12,14,14a-tetrahydro-9H,13H-pyrazino[2,1-c]pyrrolo[1,2-a][1,4]benzodiazepin-13-yl)ethanone
![2H-Pyrazino[1,2-b]isoquinoline-2-carboxamide,N-ethyl-1,2,4,6,11,11a-hexahydro-](/structure/63586-80-1.png)
2H-Pyrazino[1,2-b]isoquinoline-2-carboxamide,N-ethyl-1,2,4,6,11,11a-hexahydro-

![2-[(8-methoxy-3,4-dihydropyrazino[1,2-a]indol-1-yl)amino]ethanol hydrochloride](/structure/127556-80-3.png)
2-[(8-methoxy-3,4-dihydropyrazino[1,2-a]indol-1-yl)amino]ethanol hydrochloride
![Pyrazino[1,2-a]azepine-2(1H)-carboxamide, N,N-diethyloctahydro-](/structure/88327-80-4.png)
Pyrazino[1,2-a]azepine-2(1H)-carboxamide, N,N-diethyloctahydro-
![Pyrazino[1,2-a]indole-1,4-dione,2,3,10,10a-tetrahydro-3,10a-dimercapto-2,3,10,10-tetramethyl-](/structure/62150-13-4.png)
Pyrazino[1,2-a]indole-1,4-dione,2,3,10,10a-tetrahydro-3,10a-dimercapto-2,3,10,10-tetramethyl-
![2-(4-Chlorophenyl)-4H-pyrazino[2,3-d][1,3]oxazin-4-one](/structure/155513-80-7.png)

![4H-Pyrazino[2,1-a]isoquinolin-4-one,2-(3-aminobenzoyl)-1,2,3,6,7,11b-hexahydro-](/structure/94494-13-0.png)
4H-Pyrazino[2,1-a]isoquinolin-4-one,2-(3-aminobenzoyl)-1,2,3,6,7,11b-hexahydro-
![2H-Pyrazino[1,2-a]pyrazine,octahydro-2,8-dimethyl-](/structure/93336-80-2.png)

Pyrazino(1,2-a)(1,4)benzodiazepine, 1,2,3,4,4a,5-hexahydro-10-methoxy- 3-methyl-7-(2-thienyl)-
![Pyrazino[1',2':1,6]pyrido[3,4-b]indole-3-propanoic acid, 6-cyclohexyl-1,2,3,4,6,7,12,12a-octahydro-1,4-dioxo-, 1,1-dimethylethyl ester, (12aS)-](/structure/211359-80-7.png)

2(1H)-Pyrazinone, 5-chloro-6-(1H-indol-3-ylmethyl)-3-(2-methylpropyl)-,4-oxide
![Pyrazino[2,3-b]quinoxaline, 2,3-bis(4-methoxyphenyl)-, 1,4-dioxide](/structure/117257-80-4.png)
Pyrazino[2,3-b]quinoxaline, 2,3-bis(4-methoxyphenyl)-, 1,4-dioxide
![Pyrazino[1,2-a]indole,1,2,3,4-tetrahydro-1-(3-methoxyphenyl)-10-methyl-](/structure/873934-13-5.png)
Pyrazino[1,2-a]indole,1,2,3,4-tetrahydro-1-(3-methoxyphenyl)-10-methyl-
![4-(3,4,6,7,12,12a-hexahydro-1h-pyrazino[2,1-b][3]benzazepin-2-yl)-1-(4-fluorophenyl)butan-1-one;dihydrochloride](/structure/58350-13-3.png)
![4H-Pyrazino[2,1-a]isoquinolin-4-one,2-(4-fluorobenzoyl)-1,2,3,6,7,11b-hexahydro-3-methyl-](/structure/105279-80-9.png)
4H-Pyrazino[2,1-a]isoquinolin-4-one,2-(4-fluorobenzoyl)-1,2,3,6,7,11b-hexahydro-3-methyl-
![2-methyl-1,3,4,14b-tetrahydro-2H-dibenzo[b,f]pyrazino[1,2-d][1,4]oxazepine](/structure/47048-80-6.png)
2-methyl-1,3,4,14b-tetrahydro-2H-dibenzo[b,f]pyrazino[1,2-d][1,4]oxazepine

![Pyrazino[1',2':1,6]pyrido[3,4-b]indole-3-propanoic acid, 6-(6-benzofuranyl)-1,2,3,4,6,7,12,12a-octahydro-1,4-dioxo-, 1,1-dimethylethyl ester, (3S,6R,12aR)-](/structure/1053613-80-1.png)
![Pyridinium,1-(6-cyano-1,4-dihydro-4-imino-2-thioxo-2H-pyrazino[2,3-d][1,3]thiazin-7-yl)-, chloride](/structure/157225-13-3.png)
Pyridinium,1-(6-cyano-1,4-dihydro-4-imino-2-thioxo-2H-pyrazino[2,3-d][1,3]thiazin-7-yl)-, chloride
![8-Fluoro-10-methoxy-3,4-dihydro-2H-pyrazino[1,2-a]indol-1-one](/structure/153501-13-4.png)
8-Fluoro-10-methoxy-3,4-dihydro-2H-pyrazino[1,2-a]indol-1-one
![1H-Pyrazino[1,2-a]quinoxalin-5(6H)-one,2,3,4,4a-tetrahydro-3-[3-(4-pyridinyl)propyl]-](/structure/75704-13-1.png)
1H-Pyrazino[1,2-a]quinoxalin-5(6H)-one,2,3,4,4a-tetrahydro-3-[3-(4-pyridinyl)propyl]-
![8-bromo-3-propyl-2,3,3a,4,5,6-hexahydro-1H-pyrazino[3,2,1-jk]carbazole hydrochloride](/structure/76061-80-8.png)
8-bromo-3-propyl-2,3,3a,4,5,6-hexahydro-1H-pyrazino[3,2,1-jk]carbazole hydrochloride
![Pyrazino[2,1-c][1,4]thiazine-6,9-dione, hexahydro-7-(hydroxymethyl)-,(7S)-](/structure/929048-13-5.png)
Pyrazino[2,1-c][1,4]thiazine-6,9-dione, hexahydro-7-(hydroxymethyl)-,(7S)-

2(1H)-Pyrazinone,6-(1H-indol-3-ylmethyl)-5-methoxy-1-methyl-3-(2-methylpropyl)-, 4-oxide