The present invention discloses compounds of Formula (I), or pharmaceutically acceptable salts, thereof: which inhibit the cellular entry of hepatitis B virus (HBV) and/or hepatitis D virus (HDV) or interfere with the function of the life cycle of HBV and/or HDV 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 and/or HDV infection. The invention also relates to methods of treating an HBV and/or HDV infection in a subject by administering a pharmaceutical composition comprising the compounds of the present invention.
A versatile method for the synthesis of (S)- or (R)-cycloalkylglycines, (S)- or (R)-N-Heterocyclic and α,β-unsaturated N-heterocyclic α-amino acids
作者:Régine Pauly、N.André Sasaki、Pierre Potier
DOI:10.1016/s0040-4039(00)76520-8
日期:1994.1
α-amino acids, cycloalkylglycines and N-heterocyclic α-amino acids, were prepared in optically pure form from the same chiral synthon 1-(R) (or 1-(S)) simply by altering the quantity or type of base required for anion formation. Elaboration of the heterocyclic intermediate 3 provided α,β-unsaturated N-heterocyclic α-amino acids.