PROCEDURE FOR THE PREPARATION OF OPTIC ISOMERS OF THE DERIVATIVES OF 1,4-DIHYDRO-PIRIDINE.
Номер патента: ES2057455T3
Опубликовано: 16-10-1994
Автор(ы): Bernard Serkiz, Jean Louis Peglion
Принадлежит: ADIR SARL
Опубликовано: 16-10-1994
Автор(ы): Bernard Serkiz, Jean Louis Peglion
Принадлежит: ADIR SARL
Реферат: New process for separating optical isomers of the compounds of general formula I: <IMAGE> in which: - Ar denotes a phenyl radical optionally containing one to five identical or different substituents, each denoting a halogen atom, an alkoxy radical containing from 1 to 4 carbon atoms, an alkylthio radical containing from 1 to 4 carbon atoms, a trihalomethyl radical or a methylenedioxy radical, - each of Y, Z, Y1 and Z1, which are identical or different, denotes a hydrogen atom, a linear or branched lower alkyl radical containing from 1 to 4 carbon atoms, a cyclopropyl radical, a dicyclopropylmethyl radical, a 2,2-dicyclopropylethyl radical, a 2,2-dicyclopropylethylene radical, a 3,3-dicyclopropylpropyl radical, a 3,3-dicyclopropyl-1-propylene radical, a linear or branched alkylene radical containing from 2 to 5 carbon atoms or a phenyl radical optionally substituted by a nitro radical, and - n is equal to 1, 2 or 3.
Process for production of derivatives of 1,4-dihydro-piridin
Номер патента: HUT39179A. Автор: Arnold Vogel. Владелец: SANDOZ AG. Дата публикации: 1986-08-28.