[EN] BCL-XL INHIBITOR ANTIBODY-DRUG CONJUGATES AND METHODS OF USE THEREOF [FR] CONJUGUÉS ANTICORPS-MÉDICAMENT INHIBITEURS DE BCL-XL ET LEURS PROCÉDÉS D'UTILISATION
A novel 1,2-diol-protecting group, p-silyloxybenzylidene group, has been developed. In addition to the stepwise deprotection conditions including desilylation and the subsequent acidic hydrolysis of the p-hydroxybenzylidene group in AcOH–THF–H2O, we have established the one-pot deprotection under basic conditions [K2CO3 (5 equiv), NH2OH·HCl (5 equiv), and CsF (1 equiv) in MeOH–H2O].
Protection of Diols with 4-(<i>tert</i>-Butyldimethylsilyloxy)Benzylidene Acetal and its Deprotection: (4-((4<i>R</i>,5<i>R</i>)-4,5-Diphenyl-1,3-Dioxolan-2-Yl)Phenoxy)(<i>Tert</i>- Butyl)Dimethylsilane
MET BCL-XL INHIBITOR ANTIBODY-DRUG CONJUGATES AND METHODS OF USE THEREOF
申请人:[en]NOVARTIS AG
公开号:WO2023225336A1
公开(公告)日:2023-11-23
Anti-Met antibody-drug conjugates that bind to human oncology targets are disclosed. The antibody-drug conjugates comprise a Bcl-xL inhibitor drug moiety and an anti-Met antibody or antigen-binding fragment thereof that binds the antigen target, e.g., the antigen expressed on a tumor or other cancer cells. The disclosure further relates to methods and compositions for use in the treatment of cancers by administering the antibody¬ drug conjugates provided herein. Linker-drug conjugates comprising Bcl-xL inhibitor drug moiety and methods of making same are also disclosed.