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发明人钱学锋,徐明华,孙丽萍. "A Process for Preparing High-Purity (R)-3-boc-amino-5-(carbonylmethyl)-2,3-dihydro-1,5-benzothiazepin-4(5H)-one" [P]. 中国发明专利, 专利号 CN 110109683 B, 授权公告日 2022-02-23.
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