Synthesis of aryl esters of protected amino acids from aryl sulfonates
摘要:
Aryl esters of Boc- and Fmoc-protected amino acids derived from electron-deficient phenols have been prepared in good yields from aryl 4-nitrobenzenesulfonates in the presence of l-hydroxy-benzotriazole as catalyst. (C) 1999 Published by Elsevier Science Ltd. Ail rights reserved.
PENTAFLUOROPHENYL 4-NITROBENZENESULFONATE AS A PEPTIDE COUPLING REAGENT
摘要:
Protected dipeptides were obtained in good yield by coupling Boc- or Fmoc-protected amino acids with amino acid esters in the presence of pentafluorophenyl 4-nitrobenzenesulfonate (PFNB) as peptide coupling agent and 1-hydroxybenzotriazole as catalyst.
METHODS AND COMPOSITIONS FOR SYNTHESIS OF THERAPEUTIC NANOPARTICLES
申请人:Dantari, Inc.
公开号:US20210170049A1
公开(公告)日:2021-06-10
Improved methods and reactants for the chemical synthesis of therapeutic nanoparticles are provided. The nanoparticles comprise a polymeric core, to which is attached one or more homing molecules and one or more therapeutic agents. Improvements in speed, yield and purity are attained using the methods disclosed herein.
Evidence for a single transition state in the intermolecular transfer of a sulfonyl group between oxyanion donor and acceptors
作者:Peter D'Rozario、Richard L. Smyth、Andrew Williams
DOI:10.1021/ja00329a078
日期:1984.8
Etude de la reactivite d'oxyanions vis-a-vis du nitro-4 benzenesulfonate de nitro-4 phenyle
Etude de la reactive d'oxyanions vis-a-vis du nitro-4 benzosulfonate de nitro-4 phenyle
MALEIMIDE-FURANYL COMPOUNDS THAT CAN BE USED IN A GENERAL METHOD FOR PREPARING MALEIMIDE-OLIGONUCLEOTIDE DERIVATIVES
申请人:Grandas Sagarra Ana María
公开号:US20130158248A1
公开(公告)日:2013-06-20
The compounds of formula (I) substantially in exo form or salts thereof, wherein: X is a biradical selected from —(CH
2
)
n
—*, —(CH
2
CH
2
O)
n
CH
2
CH
2
—*, methylcyclohexyl and methylphenyl; n is an integer ranging between 1 and 30; Y is a radical selected from —COOH, a substituted phosphoramidite radical and N-hydroxysuccinimide ester (or other active ester) of carboxylic acid; and * represents the place through which X binds to Y, are useful in a general process for solid-phase preparation of maleimide-oligonucleotide derivatives.
[EN] PROCESSES FOR PREPARING PHARMACEUTICALLY RELEVANT PEPTIDES<br/>[FR] MÉTHODES DE PRÉPARATION DE PEPTIDES PERTINENTS SUR LE PLAN PHARMACEUTIQUE
申请人:STEALTH BIOTHERAPEUTICS CORP
公开号:WO2016144905A1
公开(公告)日:2016-09-15
The present technology provides methods of generating the peptides, and pharmaceutically acceptable salts of the peptides and intermediates thereof. In some embodiments, the peptide is D-Arg-2´6´-Dmt-Lys-Phe-NH2.
Processes for preparing pharmaceutically relevant peptides
申请人:STEALTH BIOTHERAPEUTICS CORP
公开号:US10633415B2
公开(公告)日:2020-04-28
The present technology provides methods of generating the peptides, and pharmaceutically acceptable salts of the peptides and intermediates thereof. In some embodiments, the peptide is D-Arg-2′6′-Dmt-Lys-Phe-NH2.