Elmore Patent Law Group, P.C.
Hepatitis B antiviral agents
The present invention discloses compounds of Formula (I), or pharmaceutically acceptable salts, esters, or prodrugs thereof: X-A1-Y-A2-Z-L-R  (I) which inhibit the protein(s) encoded by hepatitis B virus (HBV) or interfere with the function of the HBV life cycle of the hepatitis B virus and are also useful as antiviral agents. The present invention further relates to pharmaceutical compositions comprising the aforementioned compounds for administration to a subject suffering from HBV infection. The invention also relates to methods of treating an HBV infection in a subject by administering a pharmaceutical composition comprising the compounds of the present invention. 
ENANTA PHARMACEUTICALS, INC.
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Wei Meizhong Yat Sun Yao-Ling Jorden Hui Xiaowen Xuri
Li Jin Or Qiu Kass Cao Peng Gao