A new direct synthesis of tertiary N-acyloxymethylamide prodrugs of carboxylic acid drugs
摘要:
N-Alkyl-N-chloromethylamides 2, prepared from secondary amides, paraformaldehyde and chlorotrimethylsilane, react readily with carboxylate anions to generate the corresponding tertiary N-acyloxymethylamides 3 in good yield; the latter give rise to the parent carboxylic acids in aqueous media at pH 7.4 and 37 degrees C with half-lives between ca. 1 min and 42 h.
A new direct synthesis of tertiary N-acyloxymethylamide prodrugs of carboxylic acid drugs
摘要:
N-Alkyl-N-chloromethylamides 2, prepared from secondary amides, paraformaldehyde and chlorotrimethylsilane, react readily with carboxylate anions to generate the corresponding tertiary N-acyloxymethylamides 3 in good yield; the latter give rise to the parent carboxylic acids in aqueous media at pH 7.4 and 37 degrees C with half-lives between ca. 1 min and 42 h.