| 摘要 |
The present invention relates to a novel, high-yield and low-cost method for preparing entecavir, [1-S-(1α,3α,4&bgr;)]-2-amino-1,9-dihydro-9-[4-hydroxy-3-(hydroxymethyl)-2-methylenecyclopentyl]-6H-purin-6-one, an antiviral agent, and novel intermediates used therein.
|
