Synthesis of 3 amino 4 hydroxy coumarin and dihydroxy phenyl coumarins as novel anticoagulants.

Publication: Arzneimittel-Forschung
Publication Date: 2010
Study Author(s): Danis, Ozkan;Yuce-Dursun, Basak;Gunduz, Cihan;Ogan, Ayse;Sener, Goksel;Bulut, Mustafa;Yarat, Aysen;
Institution: Marmara University, Faculty of Science and Letters, Department of Chemistry, Goztepe, Istanbul, Turkey.
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Natural and synthetic Coumarin derivatives have been shown to possess several beneficial pharmacological effects. The anticoagulation and antithrombotic activities of the 4-hydroxy coumarin derivatives are well known. In this study, besides the 4-hydroxy substituent phenyl and p-methylphenyl derivatives were synthesized and confirmed on the basis of their spectral data. 3-Amino-4-hydroxy coumarin, 5,7-dihydroxy-4-phenyl coumarin and 7,8-dihydroxy-3-(4-methylphenyl)coumarin were tested in rats to determine whether they had any effect on Vitamin K inhibition by investigating the prothrombin time (PT). PT values of coumarin derivatives were compared with those of Warfarin (CAS 81-81-2), which is the most commonly used anticoagulant. 7,8-Dihydroxy-3-(4-methylphenyl)coumarin increased PT when compared to saline treated control group and other coumarins synthesized, 3-amino-4-hydroxy coumarin and 5,7-dihydroxy-4-phenyl Coumarin.
PMID: 21125812

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