[EN] TYROSINE LIGATION PROCESS<br/>[FR] PROCÉDÉ DE LIGATURE DE LA TYROSINE
申请人:NOVARTIS AG
公开号:WO2013009564A1
公开(公告)日:2013-01-17
A process is provided for preparing a conjugate of Formula (I-A) or (I) comprising a polypeptide (or a protein) containing n number of tyrosine units, where n is an integer greater than or equal to 1, dispersed within the amino acid chain having an amino terminus end (A1) and an acid terminus end (A2) of the protein or polypeptide (either the amino or acid terminus end can be the at least one tyrosine unit) and having a weight average molecular weight equal to or greater than 10,000 Daltons (10 kDa), wherein the conjugate comprises a number m of tyrosine conjugates (modified tyrosine residues) as depicted in Formula (I-A) or (I), where m is at least one and is less than or equal to n: where X, Lg, L and R are as defined herein.
A process is provided for preparing a conjugate of Formula (I-A) or (I) comprising a polypeptide containing n number of tyrosine units, where n is an integer greater than or equal to 1, dispersed within the amino acid chain
having and amino terminus end (A
1
) and an acid terminus end (A
2
) of the protein or polypeptide and having a weight average molecular weight equal to or greater than 10,000 Daltons (10 kDa), wherein the conjugate comprises a number m of tyrosine conjugates (modified tyrosine residues) as depicted in Formula (I-A) or (I), where m is at least one and is less than or equal to n:
where X, Lg, L and R are as defined herein.
Sustainable synthesis routes towards urazole compounds
作者:Laetitia Vlaminck、Babs Van de Voorde、Filip E. Du Prez
DOI:10.1039/c7gc02027a
日期:——
The synthesis of urazoles in a one-pot, fast and high-yielding fashion without the use of isocyanates or chloroformates is described.
在不使用异氰酸酯或氯甲酸酯的情况下,以一锅法、快速且高产率的方式合成尿唑醇。
Diastereoselective Tandem Diels-Alder Macrocyclizations Starting from Sorbyl or Sorboyl Derivatives
作者:Klaus Banert、Patrick Schumann
DOI:10.1055/s-2008-1032083
日期:——
A novel class of diastereomeric macrocycles was synthesized via tandem Diels-Alder reactions of prochiral double sorbyl or sorboyl derivatives and short-bridged bis-1,2,4-triazoline-3,5-diones.