treatment or prevention of dilation of blood vessels, the school of medicine in the group of 3, 4 - two benzene by the use of (USE of 3, 4 - DIPHENYL CHROMANS free on rail THE MANUFACTURE of a PHARMACEUTICAL COMPOSITION free on rail VASODILATORY TREATMENT OR PROPHYLAXIS)

摘要

this invention is a dilation of blood vessels or the drug prevention and treatment of water, in order to make the school a school of medicine as carrier and is allowed to have the chemical formula i, is a compound or its pharmaceutical salt of allowed science to provide a new use.;(chemical formula i);thus, R1, R4 and R5 should eat more of hydrogen, halogen, and three to five road methyl or lower alkyl, lower valve are known (or third amino (lower) that assail the nostrils), and R3; R2 each hydrogen or lower alkyl.