发明名称 |
DERIVATIVES OF 2,3-DIHYDROPYRANO(2,3-B)PYRIDINE OR THEIR SALT, METHOD OF SYNTHESIS OF 2-AMINOMETHYL-2,3-DIHYDROPYRANO[2,3-B]PYRIDINE AS PARENTAL SUBSTANCE FOR SYNTHESIS OF DERIVATIVES OF 2,3-DIHYDROPYRANO(2,3-B)PYRIDINE AND A METHOD OF ITS SYNTHESIS |