[EN] CYTOTOXIC BIS-BENZODIAZEPINE DERIVATIVES AND CONJUGATES THEREOF WITH CELL-BINDING AGENTS FOR INHIBITING ABNORMAL CELL GROWTH OR FOR TREATING PROLIFERATIVE DISEASES [FR] DÉRIVÉS DE BIS-BENZODIAZÉPINE CYTOTOXIQUES ET LEURS CONJUGUÉS AVEC DES AGENTS DE LIAISON À UNE CELLULE POUR INHIBER LA CROISSANCE CELLULAIRE ANORMALE OU POUR TRAITER DES MALADIES PROLIFÉRATIVES
[EN] CYTOTOXIC BIS-BENZODIAZEPINE DERIVATIVES AND CONJUGATES THEREOF WITH CELL-BINDING AGENTS FOR INHIBITING ABNORMAL CELL GROWTH OR FOR TREATING PROLIFERATIVE DISEASES [FR] DÉRIVÉS DE BIS-BENZODIAZÉPINE CYTOTOXIQUES ET LEURS CONJUGUÉS AVEC DES AGENTS DE LIAISON À UNE CELLULE POUR INHIBER LA CROISSANCE CELLULAIRE ANORMALE OU POUR TRAITER DES MALADIES PROLIFÉRATIVES
[EN] CROSS-LINKED PYRROLOBENZODIAZEPINE DIMER (PBD) DERIVATIVE AND ITS CONJUGATES<br/>[FR] DÉRIVÉ DE DIMÈRE DE PYRROLOBENZODIAZÉPINE RÉTICULÉ (PBD) ET SES CONJUGUÉS
申请人:HANGZHOU DAC BIOTECH CO LTD
公开号:WO2020006722A1
公开(公告)日:2020-01-09
A novel cross-linked cytotoxic agents, pyrrolobenzo-diazepine dimer (PBD) derivatives, and their conjugates to a cell-binding molecule, a method for preparation of the conjugates and the therapeutic use of the conjugates.
Peptide Bond Formation of Amino Acids by Transient Masking with Silylating Reagents
作者:Wataru Muramatsu、Hisashi Yamamoto
DOI:10.1021/jacs.1c02600
日期:2021.5.12
A one-pot peptide bond-forming reaction has been developed using unprotected amino acids and peptides. Two different silylating reagents, HSi[OCH(CF3)2]3 and MTBSTFA, are instrumental for the successful implementation of this approach, being used for the activation and transient masking of unprotected amino acids and peptides at C-termini and N-termini, respectively. Furthermore, CsF and imidazole
The invention relates to novel benzodiazepine derivatives with antiproliferative activity and more specifically to novel benzodiazepine compounds of formula (I)-(VI). The invention also provides conjugates of the benzodiazepine compounds linked to a cell-binding agent. The invention further provides compositions and methods useful for inhibiting abnormal cell growth or treating a proliferative disorder in a mammal using the compounds or conjugates of the invention.
Synthesis of Silacyclic Dipeptides: Peptide Elongation at Both N- and C-Termini of Dipeptide
作者:Tomohiro Hattori、Hisashi Yamamoto
DOI:10.1021/jacs.1c11260
日期:2022.2.2
A new type of peptide bond formation utilizing silacyclic aminoacids or peptides is described. This work has the following advantages: (1) imidazolylsilane is a highly fascinating coupling reagent for dipeptide synthesis from N-,C-terminal unprotected aminoacids with aminoacid tert-butyl esters; (2) deprotection of the tert-butyl ester at the C-terminus and cyclization sequentially proceed depending