The synthesis, structural characterization and in vitro anticancer activity of novel 1-alkyl-1′-N-meta-(ferrocenyl) benzoyl dipeptide esters and novel 1-alkyl-1′-N-ortho-(ferrocenyl) benzoyl dipeptide esters
摘要:
1-Alkyl-1'-N-meta-(ferrocenyl) benzoyl dipeptide esters 7-18 and 1-alkyl-1'-N-ortho-(ferrocenyl) benzoyl dipeptide esters 19-30 were prepared by coupling the alkyl ferrocenyl benzoic acids 1-6 to the dipeptide ethyl esters Gly-Gly(OEt), Gly-L-Ala(OEt), Gly-L-Leu(OEt) and Gly-L-Phe(OEt) using the standard N-(3-dimethylaminopropyl)-N'-ethylcarbodiimide hydrochloride (EDC), 1-hydroxybenzotriazole (HOBt) protocol. The alkyl groups employed in the synthesis were methyl, ethyl and propyl. The compounds were characterized using a combination of H-1 NMR, C-13 NMR, DEPT-135 and H-1-C-13 COSY (HMQC) spectroscopy and electrospray ionization mass spectrometry (ESI-MS). Selected compounds showed micromolar activity in the H1299 NSCLC cell line, with IC50 values in the range of 2.6-20.1 mu M. (C) 2014 Elsevier B. V. All rights reserved.
The synthesis, structural characterization and in vitro anticancer activity of novel 1-alkyl-1′-N-meta-(ferrocenyl) benzoyl dipeptide esters and novel 1-alkyl-1′-N-ortho-(ferrocenyl) benzoyl dipeptide esters
摘要:
1-Alkyl-1'-N-meta-(ferrocenyl) benzoyl dipeptide esters 7-18 and 1-alkyl-1'-N-ortho-(ferrocenyl) benzoyl dipeptide esters 19-30 were prepared by coupling the alkyl ferrocenyl benzoic acids 1-6 to the dipeptide ethyl esters Gly-Gly(OEt), Gly-L-Ala(OEt), Gly-L-Leu(OEt) and Gly-L-Phe(OEt) using the standard N-(3-dimethylaminopropyl)-N'-ethylcarbodiimide hydrochloride (EDC), 1-hydroxybenzotriazole (HOBt) protocol. The alkyl groups employed in the synthesis were methyl, ethyl and propyl. The compounds were characterized using a combination of H-1 NMR, C-13 NMR, DEPT-135 and H-1-C-13 COSY (HMQC) spectroscopy and electrospray ionization mass spectrometry (ESI-MS). Selected compounds showed micromolar activity in the H1299 NSCLC cell line, with IC50 values in the range of 2.6-20.1 mu M. (C) 2014 Elsevier B. V. All rights reserved.