The Reformatsky-type condensation between methyl and t-butyl 3-(N,N-dimethylamino)propionates (9) and (10) with α-alkoxyaldehydes, which has been studied on varying the protective group of the aldehyde, proceeds with good diastereoselectivity.
The present invention is directed to a compound of formula (I),
methods for preparing these compounds, compositions, intermediates and derivatives thereof, and methods for treating inflammatory and serine protease mediated disorders.
The present invention is directed to a compound of formula (I),
methods for preparing these compounds, compositions, intermediates and derivatives thereof, and methods for treating inflammatory and serine protease mediated disorders.
Method of encapsulating a nucleic acid in a lipid nanoparticle host
申请人:Novartis AG
公开号:US10342761B2
公开(公告)日:2019-07-09
Encapsulated nucleic acid nanoparticles of uniformly small particle size are produced by intersecting one or more nucleic acid streams with one or more lipid streams. The encapsulated nucleic acid nanoparticles include a nucleic acid encapsulated within a lipid nanoparticle host. Uniformly small particle sizes are obtained by intersecting an aqueous nucleic acid stream and a stream of lipids in organic solvent at high linear velocities and with total organic solvent concentrations less than 33%.
Lipids and lipid compositions for the delivery of active agents
申请人:Novartis AG
公开号:US10426737B2
公开(公告)日:2019-10-01
This invention provides for a compound of formula (I) or a pharmaceutically acceptable salt thereof, wherein R1-R3, n, p, L1 and L2 are defined herein. The compounds of formula (I) and pharmaceutically acceptable salts thereof are cationic lipids useful in the delivery of biologically active agents to cells and tissues.