105141-58-0
(2R,5S)-2-(2-(bromomethyl)benzyl)-5-isopropyl-3,6-dimethoxy-2-methyl-2,5-dihydropyrazine
→
105141-60-4
(3S,11aR)-3-isopropyl-1-methoxy-11a-methyl-11,11a-dihydro-3H-pyrazino[1,2-b]isoquinolin-4(6H)-one