M. Somei et al., PREPARATIONS OF 1-HYDROXYINDOLE DERIVATIVES AND THEIR POTENT INHIBITORY ACTIVITIES ON PLATELET-AGGREGATION, Heterocycles, 43(9), 1996, pp. 1855-1858
1-Hydroxymelatonin, 5-bromo- and 5,7-dibromo-1-hydroxytryptamine deriv
atives, 1,4-dihydroxy-5-nitroindole, 1-hydroxy-3-methylsulfinylmethyli
ndole, and 4,5-tetrahydro-1-hydroxypyrrolo[4,3,2-de]quinoline were syn
thesized for the first time, 1-Hydroxyindoles revealed potent inhibito
ry activities on platelet aggregation.