METHOD OF SYNTHESIS OF 3-ETHYL-5-METHYL(±)2-[(2-AMINOETHOXY)- -METHYL]-4-(2-CHLOROPHENYL)-1,4-DIHYDRO-6-METHYL-3,5-PYRIDINE- -DICARBOXYLATE MONOBENZENESULFONATE Russian patent published in 2000 - IPC

Abstract RU 2146672 C1

FIELD: organic chemistry, aminoheterocyclic compounds. SUBSTANCE: invention relates to the method of synthesis of the novel compound - 3-ethyl-5- -methyl(±)2-[(2-aminoethoxy)-methyl] -4-(2-chlorophenyl)-1,4- -dihydro-6-methyl-3,5-pyridinedicarboxylate monobenzenesulfo-nate. For synthesis of indicated compound 3-ethyl-5-methyl- -(6-8oC)2-[(2-N-3-phenylmethylamino)-ethoxymethyl] -4-(2-chloro- -phenyl)-1,4-dihydro-6-methyl-3,5-pyridinedicarboxylate is mixed with hydrochloric acid solution in dioxane and stirred. Then benzenesulfoacid solution in acetone is added, stirred again, water is added, cooled and kept at 6-8 C for 8-12 h. EFFECT: simplified method, increased yield in technology of medicinal forms. 4 cl

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RU 2 146 672 C1

Authors

Titov M.I.(Ru)

Popov D.A.(Ru)

Dates

2000-03-20Published

1999-10-13Filed