摘要:
The present invention relates, in general, to prodrugs. In particular, the present invention relates to lipophilic, aminohydrolase-activated, anti-viral nucleoside prodrug compounds, pharmaceutical compositions containing these compounds, and methods of using these compounds.
摘要:
Methods of treating a human infected with human immunodeficiency virus (HIV), such as a human with AIDS, with the purina nucleotides 2',3'-dideoxy-2'-beta-fluoroadenosine (FddA) and 2',3'-dideoxy-2'-beta-fluoroinosine (FddI) are disclosed. These nucleotides are stable in an acid environment and thus can be used for oral administration. Methods of inhibiting human immunodeficiency virus replication in a human T cell using these purina nucleotides are also disclosed.
摘要:
Purine nucleosides active against human immunodeficiency virus which are substituted at the 2'-position by a strong electronegative group such as fluorine are stable in an acid environment and thus can be used for oral administration.
摘要:
5-substituted 2',3'-dideoxycytidine compounds and their monophosphates are disclosed which have been found to have potent activity against retroviruses. The 5-fluoro-and 5-aza-substituted 2',3'-dideoycytidine compounds have been found to be effective against HTLV-III/LAV virus.
摘要:
A temporary fastener and a method of attaching an aircraft skin to a frame using the temporary fastener during a step of the skin to frame assembly process. The fastener secures the skin to the structure while holes for permanent fasteners are drilled through the skin and frame; the fastener is flush mounted so that an automatic drill can drill the holes without interference. The temporary fastener can be removed after the permanent fastener holes are drilled, and before or after permanent fasteners are inserted within their respective holes.
摘要:
A system for assembling wire harnesses with their connectors utilizes a compact computer-based system that is linked to an engineering data base. The data base contains component information, such as harness number, associated wires, and pin location to connector. An integrated tool contains a light panel that is linked to a dummy connector. The dummy connector has a mating end for the connector being pinned. The connector is mated to the dummy connector such that pin holes in the connector align with the light rods in the dummy connector. The wires are identified by voice recognition, bar code, and/or optical character recognition. Once a wire has been identified, the system illuminates the appropriate pin location on the selected connector, thereby providing a visible point of light in which the selected wire is to be terminated.
摘要:
A temporary fastener and a method of attaching an aircraft skin to a frame using the temporary fastener during a step of the skin to frame assembly process. The fastener secures the skin to the structure while holes for permanent fasteners are drilled through the skin and frame; the fastener is flush mounted so that an automatic drill can drill the holes without interference. The temporary fastener can be removed after the permanent fastener holes are drilled, and before or after permanent fasteners are inserted within their respective holes.
摘要:
A system and method for dispensing a sealant over aircraft fasteners secured to a surface in the aircraft. The system includes a nozzle tip having a shroud configured for placement over the fasteners. Sealant is metered to the shroud via an orifice within the nozzle tip. The shroud is sized to leave a space between it and the fastener to control the amount of sealant applied to the fastener upper surface and along the interface between the fastener and aircraft surface. Pressurized fluid urges the sealant through the orifice.
摘要:
A system and method for dispensing a sealant over aircraft fasteners secured to a surface in the aircraft. The system includes a nozzle tip having a shroud configured for placement over the fasteners. Sealant is metered to the shroud via an orifice within the nozzle tip. The shroud is sized to leave a space between it and the fastener to control the amount of sealant applied to the fastener upper surface and along the interface between the fastener and aircraft surface. Pressurized fluid urges the sealant through the orifice.