1,3-Asymmetric induction in enolate alkylation reactions of N-protected γ-amino acid derivatives
摘要:
Dianions derived from N-TFA and N-Boc gamma-amino acid esters and amides undergo highly stereoselective alpha-alkylation reactions The roles of HMPA, of the cation, the electrophile, and of steric factors were studied. Copyright (C) 1996 Elsevier Science Ltd
TUBULYSIN ANALOGUES AS ANTICANCER AGENTS AND PAYLOADS FOR ANTIBODY-DRUG CONJUGATES AND METHODS OF TREATMENT THEREWITH
申请人:William Marsh Rice University
公开号:US20210188906A1
公开(公告)日:2021-06-24
In one aspect, the present disclosure provides tubulysin analogs of the formula (I) wherein the variables are as defined herein. In another aspect, the present disclosure also provides methods of preparing the compounds disclosed herein. In another aspect, the present disclosure also provides pharmaceutical compositions and methods of use of the compounds disclosed herein. Additionally, drug conjugates with cell targeting moieties of the compounds are also provided.
1,3-Asymmetric induction in enolate alkylation reactions of N-protected γ-amino acid derivatives
作者:Stephen Hanessian、Robert Schaum
DOI:10.1016/s0040-4039(96)02263-0
日期:1997.1
Dianions derived from N-TFA and N-Boc gamma-amino acid esters and amides undergo highly stereoselective alpha-alkylation reactions The roles of HMPA, of the cation, the electrophile, and of steric factors were studied. Copyright (C) 1996 Elsevier Science Ltd
Co-Catalyzed Direct Regio- and Enantioselective Intermolecular γ-Amination of <i>N</i>-Acylpyrazoles