4-Bromophenylhydrazine hydrochloride → HCID 46898134, compound

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Analogously to example 1.2, from a racemic mixture of diastereomers of 2-methanesulfonyl-2-(3-oxo-cyclohexyl)-propionic acid methyl ester and (4-bromo-phenyl)-hydrazine hydrochloride were prepared the following 2 racemic diastereomers which could be separated by column chromatography to yield (RS,SR)-2-(6-bromo-2,3,4,9-tetrahydro-1H-carbazol-2-yl)-2-methanesulfonyl-propionic acid methyl ester, MS: 414 (MH+,1Br), and (RR,SS)-2-(6-bromo-2,3,4,9-tetrahydro-1H-carbazol-2-yl)-2-methanesulfonyl-propionic acid methyl ester, MS: 414 (MH+,1Br).

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