2-Diphenylmethyleneamino-3-indolylpropionitrile and alkyl esters of 2-diphenylmethylene-amino-3-indolylpropionic acid
AssigneeToray Industries, Inc.
InventorsShinzo Imamura, Haruyo Sato, Hiroyoshi Kuramoto
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Abstract
Novel indole derivatives of the general formula I can be obtained by reacting, directly or indirectly, N,N-dimethyl-3-indolemethylamine with a Schiff base of the general formula II, ##STR1## in which R.sup.1 is cyano or methoxycarbonyl, ethoxycarbonyl, propoxycarbonyl or butoxycarbonyl, and .phi. is phenyl. The successive hydrolysis of the indole derivatives of the general formula I in the presence of an acid and of a base gives tryptophane.
Claims2
A compound of Formula I, ##STR13## in which R.sup.1 is selected from the group consisting of cyano, methoxycarbonyl, ethoxycarbonyl, propoxycarbonyl and butoxycarbonyl, and .phi. is phenyl.
Dependencies are inferred from the claim text.