Synthesis and pharmacological activity of O-aminoalkyl derivatives of 7-hydroxycoumarin
摘要:
A series of novel O-aminoalkyl substituted 7-hydroxycoumarins were synthesized and evaluated for antibacterial and anticancer toxicity. Two different synthetic procedures, conventional and microwave assisted were used, and the structures of the compounds were confirmed by IR. H-1, C-13 NMR and MAS spectroscopic data. The molecular and crystal structures of 8-acetyl-7-(2-(1-morpholino)ethoxy) 4-methylchromen-2-one in solid state were analyzed by single crystal X-ray diffraction. The compound crystallizes in the monoclinic space group P2(1)/c. The main driving forces for the supramolecular structure are the C-H center dot center dot center dot O hydrogen bonds and the it pi...pi it intermolecular interactions. The most active compounds are those, where the O-aminoalkyl substituent has N,N-diethylamino part, and acetyl group is at C6 or at C8 atoms. (C) 2011 Elsevier Masson SAS. All rights reserved.
A series of novel O-aminoalkyl substituted 7-hydroxycoumarins were synthesized and evaluated for antibacterial and anticancer toxicity. Two different synthetic procedures, conventional and microwave assisted were used, and the structures of the compounds were confirmed by IR. H-1, C-13 NMR and MAS spectroscopic data. The molecular and crystal structures of 8-acetyl-7-(2-(1-morpholino)ethoxy) 4-methylchromen-2-one in solid state were analyzed by single crystal X-ray diffraction. The compound crystallizes in the monoclinic space group P2(1)/c. The main driving forces for the supramolecular structure are the C-H center dot center dot center dot O hydrogen bonds and the it pi...pi it intermolecular interactions. The most active compounds are those, where the O-aminoalkyl substituent has N,N-diethylamino part, and acetyl group is at C6 or at C8 atoms. (C) 2011 Elsevier Masson SAS. All rights reserved.
Solid state structure by X-ray and 13C CP/MAS NMR of new 7-[2-(N,N-diisopropylamino)ethoxy]coumarins
xy]coumarin ( 1 ) and 7-[2-( N,N -diisopropylamino)ethoxy]-4-methylcoumarin ( 2 ) were synthesized in a traditional way and by microwave-assisted synthesis. The solidstatestructure was analyzed using X-ray diffraction and 13 C CP/MASNMR methods. Double resonances were observed in the spectrum of 2 , in contrary to the spectrum of 1 . The X-ray diffraction results indicate that the compound 2 crystallizes