A cationic amphiphile for facilitating transport of a biologically active molecule into a cell has the structure A-F-D, in which A is a lipid anchor, D is a head group, and F is a spacer group having the structure described herein. A method for facilitating transport of a biologically active molecule into a cell comprises preparing a lipid mixture comprising a cationic amphiphile having structure A-F-D, preparing a lipoplex by contacting the lipid mixture with a biologically active molecule; and contacting the lipoplex with a cell, thereby facilitating transport of the biologically active molecule into the cell.
Synthesis, characterization, and reverse-micellar studies of some N-substituted derivatives of 6-amino-6-deoxy-1,2-O-isopropylidene-d-glucose
作者:Lalit Sharma、Serjinder Singh
DOI:10.1016/0008-6215(94)00007-3
日期:1995.4
Abstract Dry heating of N-substituted hexadecylamines with 5,6- anhydro-1,2 -O- isopropylidene -α- d -glucofuranose afforded glucose-based nonionic surfactants having a tertiary amino group linked to C-6 of the glucose moiety. These surfactants were tested for the solubilization of the l -amino acids tryptophan, tyrosine, phenylalanine, and cysteine in n-hexane. Reverse-micellar measurements revealed
A new strategy for the preparation of secondary amines via o-(tetrahydropyranyloxymethyl)-benzamides
作者:Thomas Fichert、Ulrich Massing
DOI:10.1016/s0040-4039(98)00990-3
日期:1998.7
The new synthesis strategy for the preparation of secondary amines starts from N-alkyl-phthalimides which are reduced to the corresponding o-hydroxymethyl-N-alkyl-benzamides. After protection of the hydroxy group as tetrahydropyranyl ether the N-alkyl-benzamides are alkylated to o-(tetrahydropyranyloxymethyl)-N,N-dialkyl-benzamides. The deprotection of the hydroxy group and the release of the secondary
A Base and Solvent-Free Ruthenium-Catalyzed Alkylation of Amines
作者:Jeff Joseph A. Celaje、Xingyue Zhang、Forrest Zhang、Lisa Kam、Jessica R. Herron、Travis J. Williams
DOI:10.1021/acscatal.6b03088
日期:2017.2.3
A (pyridyl)phosphine-ligated ruthenium(II) catalyst is reported for the chemoselective benzylic N-alkylation of amines, via a hydrogen-borrowing mechanism. The catalyst operates under mild conditions, neat, and without a base or other additive. These conditions offer remarkable functional group compatibility for applications in organic synthesis, including reactions involving phenols and anilines,