Process for inverting the configuration in optically active...

C - Chemistry – Metallurgy – 07 – D

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260/261, 260/295

C07D 263/14 (2006.01)

Patent

CA 1132560

- 1 - Abstract The invention relates to a process for inverting the con- figuration in optically active compounds of the formula Image (I), in which Ar1 represents 1-naphthyl, 3-lower alkylphenyl, 2-lower alkylphenyl, 2-lower alkenyloxyphenyl, 4-lower alkanoylaminophenyl, 4-(2-lower alkoxyethyl)phenyl, pyrazin-2-yl, pyrimidin-2-yl, (1-pyrryl)-phenyl, 4-indolyl, 5-(2-lower alkoxycarbonylaminoethyl)- pyridyl, 3-cyanopyridyl, 4-(benzimidazol-2-on)yl, 4-(N'-cycloalkylureido)phenyl, benzyloxyphenyl or hydroxyphenyl R1 represents lower alkyl, phenyl-lower alkyl or phenoxy-lower alkyl, or the salts thereof, charac- terised in that an optically active compound of the formula

332626

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