The present invention discloses compounds of Formula (I), or pharmaceutically acceptable salts, esters, or prodrugs thereof:
X-A-Y-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.
Process for forming perfluorinated-alkyl sulfonamide substituted norbornene-type monomers
申请人:Bell Andrew
公开号:US20080027246A1
公开(公告)日:2008-01-31
Embodiments in accordance with the present invention are directed to providing processes for forming fluorinated-alkyl and particularly perfluorinated-alkyl sulfonamide substituted norbornene-type monomers.
本发明实施例涉及提供用于形成氟化烷基和特别是全氟烷基磺酰胺取代的诺博烯型单体的过程。
Thermal Rearrangement of 7-Methylbicyclo[3.2.0]hept-2-ene: An Experimental Probe of the Extent of Orbital Symmetry Control in the [1,3] Sigmatropic Rearrangement
作者:Jared D. Bender、Phyllis A. Leber、Ruel R. Lirio、Randall S. Smith
DOI:10.1021/jo9918899
日期:2000.8.1
gas-phase thermalrearrangement of exo-7-methylbicyclo[3.2.0]hept-2-ene yields almost exclusively 5-methylnorbornene products. Inversion (i) of configuration dominates this [1,3] sigmatropic shift although some retention (r) is also observed. Because the [1,3] migration can only occur suprafacially (s) in this geometrically constrained system, the si/sr ratio of 7 observed for the migration of C7 in
Substituent effects on1H chemical shifts. I—complete1H chemical shift assignments of methyl-substituted cyclic systems
作者:Julie Fisher、Michael J. Gradwell
DOI:10.1002/mrc.1260300412
日期:1992.4
1H chemical shift assignments are presented for 2‐methyladamantane, 2‐methylnorbornane (endo and exo) and 2‐methylnorbornene (endo and exo). Resonance assignment was achieved using a variety of 1D and 2D homo‐ and heteronuclear (1H–13C) experiments. The methyl group‐induced substituent chemical shift (SCS) is derived and the SCS of protons vicinal to this group is discussed.
Polycyclic polymers containing pendant ion conducting moieties
申请人:Ravikiran R.
公开号:US20080242750A1
公开(公告)日:2008-10-02
A polymer comprising polycyclic repeating units having recurring ion conducting groups and optional crosslinkable groups is disclosed. The present invention provides the capability of tailoring polymers to impart unique properties to membranes fabricated from the polymers. Membranes comprising the polymers and methods for preparing the membranes and their use in ion conducting membranes, particularly in fuel cells, are also provided.