One aspect of the invention relates to AI-helper compositions comprising an AI compound (e.g., melatonin) and one or more helper esters. The AI-helper compositions disclosed herein can be used for effective transdermal delivery of the AI compound to a subject. Another aspect of the invention relates to applications and preparations of the AI-helper compositions.
Reaction of Amphipathic-Type Thioester and Amine with Hydrophobic Effect in Water
作者:Chiaki Kuroda、Atsushi Torihata
DOI:10.1055/s-0030-1261165
日期:2011.9
The title reaction was studied using sodium 3-(1-oxododec-1-yl)thio- and 3-(1-oxohept-1-yl)thiopropanoate with various chain lengths of amines. The yields of the amides were found to depend on both the chain length of the thioester and that of amine, suggesting the presence of hydrophobic interaction. The amides were obtained in better yields after addition of sodium fluoride. Acylation (dodecanoylation) of some hydrophobic amino acids was also studied to obtain the corresponding amides.