申请人:Lee Jaeheon
公开号:US20110251387A1
公开(公告)日:2011-10-13
The present invention relates to a novel, high-yield and low-cost method for preparing entecavir, [1-S-(1α,3α,4β)]-2-amino-1,9-dihydro-9-[4-hydroxy-3-(hydroxymethyl)-2-methylenecyclopentyl]-6H-purin-6-one, an antiviral agent, and novel intermediates used therein.
本发明涉及一种新型、高产、低成本的制备抗病毒药物恩替卡韦的方法,[1-S-(1α,3α,4β)]-2-氨基-1,9-二氢-9-[4-羟基-3-(羟甲基)-2-亚甲基环戊基]-6H-嘌呤-6-酮,以及其中使用的新型中间体。