The invention provides a compound having a 12-lipoxygenase inhibitory effect and a drug selectively inhibiting 12-lipoxygenase and relates to a novel coumarin derivative represented by general formula (1) and a drug comprising said compound as the active ingredient. In formula (1) R¹ represents hydrogen or lower alkyl; R² and R³ represent each hydrogen or hydroxyl provided that R² and R³ do not represent hydrogen atoms at the same time; and Ar represents (a) (b), (c) etc.; and R⁴ represents lower alkyl, lower alkoxy, halogen, trifluoromethyl or cyano. It further provides a compound which can be converted into another compound capable of selectively inhibiting 12-lipoxygenase activity through cleavage and breakage of its modifying moiety in vivo and a drug which selectively inhibits 12-lipoxygenase and relates to a novel coumarin derivative having an acyl group as the modifying moiety and a drug containing said compound as the active ingredient. The invention compound, which can potently inhibit 12-lipoxygenase at a high selectivity, is useful as a drug for preventing and treating circulatory diseases such as arteriosclerosis and vasoconstriction and preventing the metastasis of certain cancers. It has a low toxicity and little exhibits side effects.
Modified coumarins. 29. Synthesis of structural analogs of natural 6-arylfuro[3,2-g]chromen-7-ones
作者:M. M. Garazd、Ya. L. Garazd、A. S. Ogorodniichuk、V. P. Khilya
DOI:10.1007/s10600-009-9261-x
日期:2009.3
3-Substituted 6-arylfuro[3,2-g]chromen-7-ones, structural analogs of natural furocoumarins, were synthesized by linear annelation of a furan fragment to a 3-arylcoumarin system.
A Ratiometric Fluorescent Probe for N2H4 Having a Large Detection Range Based upon Coumarin with Multiple Applications
作者:Xiao Sheng、Xinfeng Sun、Yiwen Zhang、Chen Zhang、Shuling Liu、Shouxin Wang
DOI:10.3390/molecules28227629
日期:——
(LOD) (0.16 μM), a large linear detectionrange (0–500 μM), and a wide effective pH interval (6–12) in N2H4 detection. Furthermore, the probe enabled quantitative N2H4 verifications in environmental water specimens in addition to qualitative detection of N2H4 in various soils and of gaseous N2H4. Finally, the probe ratiometrically monitored N2H4 in living cells having low cytotoxicity.