Design, synthesis and cytotoxicity of chimeric erlotinib-alkylphospholipid hybrids
作者:Md. Maqusood Alam、Ahmed H.E. Hassan、Kun Won Lee、Min Chang Cho、Ji Seul Yang、Jiho Song、Kyung Hoon Min、Jongki Hong、Dong-Hyun Kim、Yong Sup Lee
DOI:10.1016/j.bioorg.2018.11.021
日期:2019.3
Two series of erlotinib-alkylphospholipid hybrids were prepared and evaluated for their antiproliferative activities against a panel of four cell lines representing lung, breast, liver and skin cancers using erlotinib and miltefosine as reference standards. Amide analogs elicited more enhanced cytotoxic activity than analogous esters. Amide derivatives 8d and 8e exhibited promising broad-spectrum antiproliferative
Acetyl glyceryl ether phosphorylcholines (platelet-activating factors ; PAFs), their enantiomers, and their analogues were efficiently synthesized in a stereochemically unambiguous manner starting from D-and L-tartaric acids as chiral synthons. The enantiomer of C16-PAF (S-comfiguration) showed far less activity than the natural PAF (R-configuration), and the N-methylpiperidine and N-methylpyrrolidine analogues were found to possess much higher activity than natural C16-PAF.
der Benzylgruppe aus acyl- bzw. alkylsubstituierten Glycerin-benzyläther-(1)- bzw. -(2)-phosphorsäure-(3)-cholinestern (10) wurden analysenreine und dünnschichtchromatographisch einheitliche Racemate von Ester-(2ab) und Äther-Lysolecithinen (2c, 4) erhalten. Die Acylverbindungen erwiesen sich in bezug auf RF-Wert und Infrarotspektrum als identisch mit enzymatisch aus Lecithin ex ovo erhaltenem L-Lysolecithin
A compound provided by the present invention, of the formula ##STR1## wherein R.sup.1 is C.sub.14-20 alkyl; R.sup.2, R.sup.3 and R.sup.4 are independently hydrogen or C.sub.1-5 alkyl, or ##STR2## represents a cyclic ammonio group; and A is C.sub.2-5 alkylene, and a pharmaceutically acceptable salt thereof, are useful as a anti-tumor agent.
Phosphatidylcholines containing an alpha-branched palmitic acid ester linked to position C2 of the glycerol backbone were synthesized and characterized using differential scanning calorimetry and X-ray diffraction, As the length of the sidegroup substituted on the palmitic acid chain is changed, the calorimetric parameters pass through a minimum. The polymorphic behaviour is different when the sidegroup is larger, or smaller, than propyl. The comparison of the physicochemical parameters of isomers differing in the bonding of the branched chain fatty acid to the glycerol backbone (to position C1 or C2, respectively) shows that the chains are nonequivalent.