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发明人高志强,沈红梅,杨光. "Method for the Synthesis of (R)-2,2-dimethyl-3-(3-oxohexahydroimidazo[1,5-a]pyrazin-2(3H)-yl)propanoic acid compound with 2,2,2-trifluoroacetic acid (1:1)" [P]. 中国发明专利, 专利号 CN 115464110 B, 授权公告日 2015-12-05.
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