[EN] COMBINATION OF HEPATITIS B VIRUS (HBV) VACCINES AND PYRIDOPYRIMIDINE DERIVATIVES<br/>[FR] ASSOCIATION DE VACCINS CONTRE LE VIRUS DE L'HÉPATITE B (VHB) ET DE DÉRIVÉS DE PYRIDOPYRIMIDINE
申请人:JANSSEN SCIENCES IRELAND UNLIMITED CO
公开号:WO2020255038A1
公开(公告)日:2020-12-24
Therapeutic combinations of hepatitis B virus (HBV) vaccines and a pyridopyrimidine derivative are described. Methods of inducing an immune response against HBV or treating an HBV-induced disease, particularly in individuals having chronic HBV infection, using the disclosed therapeutic combinations are also described. The invention provides therapeutic combinations or compositions and methods for inducing an immune response against hepatitis B viruses (HBV) infection.
Enantioselective synthesis of non-proteinogenic amino acids via metallated bis-lactim ethers of 2,5-diketopiperazines
作者:Ulrich Schöllkopf
DOI:10.1016/s0040-4020(01)91926-x
日期:1983.1
excess = asymmetric induction) of the adduct exceeds 95%. On hydrolysis the adducts are cleaved liberating the chiral auxiliary (used to build up the bis-lactim ether 1) and the target molecules, the opticallyactive amino acid methyl esters of type 8,19,25 or 36. The two amino acid esters are separable either by fractional distillation or (eventually after further hydrolysis to amino acids) by chromatography
The present disclosure relates generally to toll like receptor modulator compounds, such as diamino pyrido[3,2 D]pyrimidine compounds and pharmaceutical compositions which, among other things, modulate toll-like receptors (e.g. TLR-8), and methods of making and using them.
A practical asymmetric synthesis of α-methyl α-amino acids using a chiral Cu–salen complex as a phase transfer catalyst
作者:Yuri N Belokon'、R.Gareth Davies、Michael North
DOI:10.1016/s0040-4039(00)01247-8
日期:2000.9
The asymmetric C-alkylation of N-benzylidene alanine methyl ester has been achieved using a copper(II) (salen) complex as an asymmetric phase transfer catalyst and provides a practicalsynthesis of α-methyl α-aminoacids with up to 86% enantiomeric excess.
Quaternized α,α′-Amino Acids via Curtius Rearrangement of Substituted Malonate–Imidazolidinones
作者:Maheswara Rao Gokada、Roger Hunter、Ana Andrijevic、Wade F. Petersen、Sauvik Samanta、Gerhard Venter、Sophie Rees-Jones
DOI:10.1021/acs.joc.7b01684
日期:2017.10.6
An efficient synthesis protocol is presented for accessing quaternized α-amino acids in chiral, nonracemic form viadiastereoselective malonate alkylation followed by C- to N-transposition. The key stereodifferentiating step involves a diastereoselective alkylation of an α-monosubstituted malonate–imidazolidinone, which is followed first by a chemoselective malonate PMB ester removal and then a Curtius