Vasodilatation remedy or use of 3,4 diphenyl chroman to production of medicine constituent for prevention

摘要

(57) Abstract As for this invention, the chemical compound general formula (i) it combines with the substrate which, on the medicine to production of the medicine constituent for vasodilatation remedy or prevention is allowed (in R formula₁, as for R₄ and R₅ individually, hydrogen and halogen, the trifluoromethyl, low-grade alkyl and the low-grade alkoxy or it is the third class amino - low-grade alkoxy; And R₂ and R₃ individually hydrogen or is low-grade alkyl) or offers the new applications of the salt which on that medicine is allowed.