摘要:
The present invention relates to novel coumarin quinolone carboxylic acids wherein the pyridone system is fused in 3,4-, 6,7- and 7,8-positions of the coumarin system, of the general formula I ##STR1## wherein R.sup.1 R.sup.2 =--NHCH=C(CO.sub.2 R.sup.6)CO, R.sup.3 =NO.sub.2 or NH.sub.2, R.sup.4 =R.sup.5 =H, R.sup.6 =H or C.sub.2 H.sub.5 ;R.sup.1 R.sup.2 =--NHCH=C(CO.sub.2 R.sup.6)CO, R.sup.3 =R.sup.4 =H, R.sup.5 =F, R.sup.6 =H or C.sub.2 H.sub.5 ;R.sup.1 R.sup.2 =--CO(CO.sub.2 R.sup.6)C=CHNH, R.sup.3 =R.sup.4 =R.sup.5 =H, R.sup.6 =H or C.sub.2 H.sub.5 ;R.sup.1 R.sup.2 =R.sup.3 R.sup.4 =--NHCH=C(CO.sub.2 R.sup.6)CO, R.sup.5 =H, R.sup.6 =H or C.sub.2 H.sub.5 ;R.sup.1 =H or OH, R.sup.2 =R.sup.5 =H, R.sup.3 R.sup.4 =--NHCH (CO.sub.2 R.sup.6)CO, R.sup.6 =H or C.sub.2 H.sub.5 ;R.sup.1 =OH, R.sup.2 =R.sup.3 =H, R.sup.4 R.sup.5 =--CO(CO.sub.2 R.sup.6) C=CHNH, R.sup.6 =H or C.sub.2 H.sub.5 ;R.sup.1 =R.sup.5 =H, R.sup.2 =CH.sub.3 or CF.sub.3, R.sup.3 R.sup.4 =--CO(CO.sub.2 R.sup.6)C=CHNH, R.sup.6 =H or C.sub.2 H.sub.5,as well as pharmaceutically acceptable salts thereof.The object of the invention are also processes for the preparation of novel coumarin quinolone carboxylic acids and the biological action thereof.
摘要:
The present invention relates to new coumarin derivatives represented by the general formula I ##STR1## wherein R.sup.1 =NH.sub.2 or --NHCH.dbd.C(CO.sub.2 C.sub.2 H.sub.5).sub.2, R.sup.2 =R.sup.3 =R.sup.4 =H, R.sup.5 =F, R.sup.1 =R.sup.3 =NHCH.dbd.C(CO.sub.2 C.sub.2 H.sub.5).sub.2, R.sup.2 =R.sup.4 =R.sup.5 =H, R.sup.1 =H or OH, R.sup.3 =NHCH.dbd.C(CO.sub.2 C.sub.2 H.sub.5).sub.2, R.sup.2 =R.sup.4 =R.sup.5 =H, R.sup.1 =OH, R.sup.2 =R.sup.3 =R.sup.4 =H, R.sup.5 =--NHCH.dbd.C(CO.sub.2 C.sub.2 H.sub.5).sub.2, R.sup.1 =R.sup.3 =R.sup.5 =H, R.sup.2 =CH.sub.3 or CF.sub.3, R.sup.4 =--NHCH.dbd.C(CO.sub.2 C.sub.2 H.sub.5).sub.2, processes for the preparation thereof and their use as intermediates for the synthesis of new coumarin derivatives with potential biological action.
摘要:
Disclosed are a novel class of components obtained in reactions of condensation of hydroxycoumarin derivatives with aromatic and aliphatic dialdehydes, their preparation and antiviral action thereof, such as against HIV.
摘要:
The present invention relates to novel hydroxy and polyhydroxy derivatives of coumarin fused with dialdehydes and aldehyde acids of the general formulae I, II, III and IV: ##STR1## wherein R.sup.1 =R.sup.2 =4-hydroxycoumarin;R.sup.1 =R.sup.2 =4,7-dihydroxycoumarin;R.sup.1 =R.sup.2 =4,5,7-trihydroxycoumarin;R.sup.1 =4-hydroxycoumarin, R.sup.2 =--CH(OH)CH.sub.3.An object of the invention are also processes for the preparation of hydroxy and polyhydroxy derivatives of coumarin fused with dialdehydes and aldehyde acids, and the antiviral action thereof.Novel hydroxy and polyhydroxy derivatives of coumarin according to the present invention exhibit antiviral action against HIV-1 virus.
摘要:
A compound of the formula wherein W is H or a &bgr;-D-glucopyranoslyloxy group, and Y and Z are independently H, C1-6 alkyl, or C1-6 alkoxy or a pharmacologically acceptable derivative thereof, is effective in the treatment or prophylaxis of a disorder benefitting from a decrease in the activity or concentration of transaminase enzymes, particularly liver disorders. The compound is preferably administered orally as a dietary supplement in combination with one or more of bee pollen, matricaria camomile, asperula oderata, royal jelly or honey.
摘要:
The present invention relates to novel hydroxy and polyhydroxy derivatives of coumarin fused with dialdehydes and aldehyde acids of the general formulae I, II, III and IV: wherein R1=R2=4-hydroxycoumarin; R1=R2=4,7-dihydroxycoumarin; R1=R2=4,5,7-trihydroxycoumarin; R1=4-hydroxycoumarin, R2=—CH(OH)CH3. An object of the invention are also processes for the preparation of hydroxy and polyhydroxy derivatives of coumarin fused with dialdehydes and aldehyde acids, and the antiviral action thereof. Novel hydroxy and polyhydroxy derivatives of coumarin according to the present invention exhibit antiviral action against HIV-1 virus.