Synonyms: Pyrrolo[1,2-a]pyrazin-1(2H)-one, hexahydro-7-mercapto-4-methyl-, [4R-(4-alpha-,7-alpha-,8a-b閠a-)]- (9CI);Pyrrolo[1,2-a]pyrazin-1(2H)-one,hexahydro-7-mercapto-4-methyl-,[4R-(4-alpha-,7-alpha-,8a-bta-)]-(9CI);(4R,7S,8AS)-4-METHYL-7-SULFANYLHEXAHYDROPYRROLO[1,2-A]PYRAZIN-1(2H)-ONE