摘要:
Novel iminium-type coupling agents containing proton acceptors in their iminium moiety, which can be used beneficially as coupling agents in various chemical polypeptide and/or polynucleotide syntheses, and are particularly useful as yield enhancing and racemization suppressing coupling agents for use in peptide syntheses, are disclosed. Further disclosed are a process of preparing such iminium-type coupling agents and their use in the preparation of polypeptides and/or polynucleotides.
摘要:
Novel iminium-type coupling agents containing proton acceptors in their iminium moiety, which can be used beneficially as coupling agents in various chemical polypeptide and/or polynucleotide syntheses, and are particularly useful as yield enhancing and racemization suppressing coupling agents for use in peptide syntheses, are disclosed. Further disclosed are a process of preparing such iminium-type coupling agents and their use in the preparation of polypeptides and/or polynucleotides.
摘要:
Novel phosphonium salts of benzotraizoles, which are highly reactive coupling agents, and are particularly useful in peptide synthesis, are disclosed. Further disclosed is a process of preparing the novel phosphonium salts and methods utilizing same for preparing peptides.
摘要:
Novel phosphonium salts of benzotraizoles, which are highly reactive coupling agents, and are particularly useful in peptide synthesis, are disclosed. Further disclosed is a process of preparing the novel phosphonium salts and methods utilizing same for preparing peptides.
摘要:
Processes for the electrophilic substitution of aromatic compounds, such as alkylation, with a desired substituent are disclosed. The processes include contacting the aromatic compound, a precursor of the desired substituent and an aqueous reagent containing zinc halide at elevated temperatures such as above 50° C.
摘要:
A process for the preparation of octyl p-methoxy cinnamate is provided. The procedure generally concerns reacting p-bromo anisole with acrylic acid; and esterifying the resulting product with 2-ethyl hexanol. Preferred reactants and conditions are provided.