256341-02-3Relevant articles and documents
A versatile synthesis of tetraester polyamine lipids for gene transfection
Lizarzaburu, Mike E.,Kurth, Mark J.,Nantz, Michael H.
, p. 8985 - 8988 (1999)
The preparation of polyamine lipids via Michael addition of diamines to tetraester bisacrylates is described. A new pentaerythritol protection strategy enabled the synthesis of a bis(p-methoxybenzyl)diether diol which was used to prepare the saturated and unsaturated diester cores.
Novel synthesis method of ester free trimethylene carbonate derivatives
Nobuoka, Hiroaki,Ajiro, Hiroharu
, p. 164 - 170 (2019/01/04)
Ester free poly(trimethylene carbonate) (PTMC) derivatives show biocompatibility and biodegradability and do not generate any acidic compounds after decomposition. Their syntheses methods are limited however, hampering their material application. Herein, we established a novel synthesis route of ester free trimethylene carbonate (TMC) derivatives. The novel synthesis route was described using six aldehydes and one ketone as starting compounds. The key reaction is the selective deprotection from two protected hydroxyl groups in the cyclic acetal structure by diisobutylaluminium hydride. This novel synthesis route means that it is possible to convert aldehyde group to ether groups in the side chain of TMC. Conventionally, only a substituent derived from a primary alcohol was introduced into the side chain. We therefore succeeded in decreasing the number of reaction steps from five to three, compared with the conventional route. Furthermore, the development of a novel synthesis route enabled the introduction of substituents derived from secondary alcohols, anticipating the creation of further types of ester free TMC derivatives.
