Process for the stereospecific synthesis of indole derivatives
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United States of America Patent
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Feb 21, 1989
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N/A
app pub date -
Jun 29, 1987
filing date -
Jul 3, 1986
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Expired
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Abstract
The present invention relates to a process for the stereo-specific synthesis of indole derivatives of formula: ##STR1## which consists in using 3-tosyloxy-1,2-O-isopropylidenepropane-1,2-diol (II) in an optically pure form in order to introduce the asymetric carbon C* of compound (I). Compound (II) is condensed with a suitable primary amine in order to prepare an oxazolidinone and condensation with a suitable phenol, and the oxazolidinone ring is then opened to form an indole compound (I).
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