Functionalization of polyglycolides by "click" chemistry
申请人:Baker Gregory L.
公开号:US20090054619A1
公开(公告)日:2009-02-26
Poly(glycolide) polymers are disclosed. The polymers generally include a polymerized alkynyl-substituted glycolide having a polymer backbone with one or more alkynyl groups appended thereto. The alkynyl groups provide reactive sites for further functionalization of the polymer, for example by reaction with azide derivatives (e.g., azide-substituted organic compounds). Alkynyl and azide groups react via the “click” chemistry mechanism to form functional groups covalently bonded to the polymer via a triazole link. The polymers are biodegradable and can be used to deliver drugs or other therapeutic substances (e.g., large biomolecules such as single strand RNA) at targeted locations in a patient's body and/or at controlled release rates.
CARBONI, B.;VAULTIER, M.;CARRIE, R., TETRAHEDRON LETT., 29,(1988) N 11, 1279-1282
作者:CARBONI, B.、VAULTIER, M.、CARRIE, R.
DOI:——
日期:——
Aliphatic amino azides as key building blocks for efficient polyamine syntheses
作者:Bertrand Carboni、Aziza Benalil、Michel Vaultier
DOI:10.1021/jo00066a028
日期:1993.7
New routes to open-chain polyamines have been developed using aliphatic amino azides as common precursors for the construction of the carbon-nitrogen framework. These alpha,omega-diaminoalkane synthetic equivalents were combined with (omega-halogenoalkyl)dichloroboranes to extend the polyamine chain from the azido moiety. An extension from the free amino group can also be achieved via a Michael type addition with acrylonitrile or a reductive amination with a gamma-azido ketone. Further transformations led to a large variety of regioselectively C- or (and) N-substituted polyamines.