Curtius Rearrangement of ω-Azido Acid Chlorides: Access to the Corresponding ω-Azido Substituted Amines and Carbamates, Useful Building Blocks for Polyamine Syntheses
handled one-pot synthetic procedure was previously developed for the synthesis of bisphosphinates starting from acyl chlorides. Herein, other trivalent derivatives as acid anhydrides and activated esters were tested to form various bisphosphinates. This modulation of the reactivity can be controlled according to the nature of the acid derivative for the use of sensitive and functionalized substrates
Intermediates useful for the manufacture of carbapenem and a stereoselective manufacturing method therefor
申请人:Eisai Co., Ltd.
公开号:US06372914B1
公开(公告)日:2002-04-16
The present invention provides an efficient stereoselective method for manufacturing (2S,4S)-2-[[(R)-hydroxy-(3R)-cyclic amine-3-yl]methyl]pyrrolidine-4-thiol or a salt thereof which is useful as an intermediate for the manufacture of carbapenem and also provides the intermediate.
A method for manufacturing which comprises the step of reacting a compound of the formula (I):
(wherein, R1 is a lower alkylsulfonyl group, an optionally substituted arylsulfonyl group or an alkylsilyl group; and R2 is a protecting group for an amino group) with a compound of the formula (II):
(wherein, R3 is a substituted or unsubstituted lower alkyl group or aryl group; X is an oxygen atom or a sulfur atom; Y is an azide group or a nitro group; and m is an integer of 2 to 5).
[EN] COMPOSITIONS AND METHODS RELATED TO ANTI-CD19 ANTIBODY DRUG CONJUGATES<br/>[FR] COMPOSITIONS ET MÉTHODES ASSOCIÉES À DES CONJUGUÉS ANTICORPS ANTI-CD19-MÉDICAMENTS
申请人:LEGOCHEM BIOSCIENCES INC
公开号:WO2017051249A1
公开(公告)日:2017-03-30
In some aspects, the invention relates to an antibody-drug conjugate, comprising an anti-CD 19 antibody; a linker; and an active agent. The antibody-drug conjugate may comprise a self-immolative group. The linker may comprise an O-substituted oxime, e.g., wherein the oxygen atom of the oxime is substituted with a group that covalently links the oxime to the active agent; and the carbon atom of the oxime is substituted with a group that covalently links the oxime to the antibody.
[EN] COMPOSITIONS AND METHODS RELATED TO ANTI-EGFR ANTIBODY DRUG CONJUGATES<br/>[FR] COMPOSITIONS ET MÉTHODES ASSOCIÉES À DES CONJUGUÉS ANTICORPS ANTI-EGFR-MÉDICAMENTS
申请人:LEGOCHEM BIOSCIENCES INC
公开号:WO2017051254A1
公开(公告)日:2017-03-30
In some aspects, the invention relates to an antibody-drug conjugate, comprising an anti-epidermal growth factor receptor ("EGFR") antibody; a linker; and an active agent. The antibody-drug conjugate may comprise a self-immolative group. The linker may comprise an O-substituted oxime, e.g., wherein the oxygen atom of the oxime is substituted with a group that covalently links the oxime to the drug; and the carbon atom of the oxime is substituted with a group that covalently links the oxime to the antibody.
[EN] DC-SIGN ANTIBODY CONJUGATES COMPRISING STING AGONISTS<br/>[FR] CONJUGUÉS D'ANTICORPS DC-SIGN COMPRENANT DES AGONISTES DE STING
申请人:NOVARTIS AG
公开号:WO2020092617A1
公开(公告)日:2020-05-07
Provided herein are immunoconjugates comprising an anti-DC-SiGN antibody conjugated to a STING agonist. Also disclosed are methods of making the immunoconjugates and methods of treating cancer using the immunoconjugates.