3,5-bis(trifluoromethyl)phenyl-[(3R,9aR)-7-bromo-3-(1H-indol-3-ylmethyl)-octahydro-pyrido[1,2-a]pyrazin-2-yl]-methanone 、
吗啉 在
SiO2 、 Dichloromethane methanol ammonium hydroxide 、 3,5-bis(trifluoromethyl)phenyl-[(3R,7R,9aR)-3-(1H-indol-3-ylmethyl)-7-morpholin-4-yl-octahydropyrido[1,2-a]pyrazin-2-yl]-methanone 、 3,5-bis(trifluoromethyl)phenyl-[(3R,7S,9aR)-3-(1H-indol-3-ylmethyl)-7-morpholin-4-yl-octahydropyrido[1,2-a]pyrazin-2-yl]-methanone 作用下,
以
乙腈 为溶剂,
反应 40.0h,
以to afford 3,5-bis(trifluoromethyl)phenyl-[(3R,7R,9aR)-3-(1H-indol-3-ylmethyl)-7-morpholin-4-yl-octahydropyrido[1,2-a]pyrazin-2-yl]-methanone (1.6 g, Rf 0.33 (CH2Cl2/MeOH/NH4OH 92:7.5:0.5)) (compound 13) and 3,5-bis(trifluoromethyl)phenyl-[(3R,7S,9aR)-3-(1H-indol-3-ylmethyl)-7-morpholin-4-yl-octahydropyrido[1,2-a]pyrazin-2-yl]-methanone (1.28 g, Rf 0.27 (CH2Cl2/MeOH/NH4OH 92:7.5:0.5)) (compound 14)的产率得到3,5-bis(trifluoromethyl)phenyl-[(3R,7R,9aR)-3-(1H-indol-3-ylmethyl)-7-morpholin-4-yl-octahydropyrido[1,2-a]pyrazin-2-yl]-methanone