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Synthetic methods for preparation of (S)-(2R,3R,11bR)-3-isobutyl-9,10-dimethoxy-2,3,4,6,7,11b-hexahydro-1H-pyrido[2,1,-a]isoquinolin-2-2-amino-3-methylbutanoate di(4-methylbenzenesulfonate)

US Patent 10906902 · Granted Feb 2, 2021

Estimated economic value: $35,972,000

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