发明名称 Process for preparing triazole-containing ketolide antibiotics
摘要 The invention described herein pertains to processes for the preparation of macrolide antibacterial agents. In particular, the invention pertains to processes for preparing macrolides and ketolides from erythromycin A.
申请公布号 US9051346(B2) 申请公布日期 2015.06.09
申请号 US201113699020 申请日期 2011.05.20
申请人 CEMPRA PHARMACEUTICALS, INC. 发明人 Pereira David E.
分类号 C07H17/08 主分类号 C07H17/08
代理机构 Brannon Sowers & Cracraft PC 代理人 Brannon Sowers & Cracraft PC
主权项 1. A process comprising (a) the step of contacting a compound of formula (III)or a salt thereof, wherein Q in combination with the oxime oxygen forms an acetal or ketal, with an acylating agent to form a compound of formula (IV)or a salt thereof, wherein R is an acyl group; or (b) the step of contacting a compound of formula (IV), or a salt thereof, with a methylating agent, to form a compound of formula (V)or a salt thereof; or (c) the step of contacting a compound of formula (V), or a salt thereof, with a deoximating agent to form a compound of formula (II)or a salt thereof; or (d) any combination of (a), (b), and (c).
地址 Chapel Hill NC US