KR850006927A - Method for preparing 4-amino-tetrahydro-2-naphthoic acid derivative - Google Patents

Abstract

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Description

Method for preparing 4-amino-tetrahydro-2-naphthoic acid derivative

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Claims (16)

(1) reducing the oxime chemical of formula (II), or (2) reacting the compound of formula (III) with ammonia, or (3) reacting the compound of formula (IV) with Reukart. to, or (4) compound and the reactivity of the food (ⅰ) R ² is hydrogen a lower alkanoic acid derived Te half to or, or (5) R ₂ is a compound with cyanide of the food (ⅰ) hydrogen Reacting with potassium or sodium cyanide or (6) esterifying a compound of formula (I) with a lower alcohol, or (7) ammonia with a compound of formula (I) wherein R ¹ is a hydroxy group or a lower alkoxy Or (8) hydrolyzing the compound of formula (I) wherein R ² is a lower alkanoyl group, or (9) hydrolyzing a compound of azine (I) wherein R ¹ is a lower alkoxy or amino group. Or (10) hydrolysis of the compound of formula (V) 4-Amino-1,2,3,4-tetrahydro-2-naphthoic acid derivative of I) and a method for producing the salt thereof. (Ⅰ) Wherein X is a halogen atom, n is 1 or 2, R ¹ is a hydroxy group, a lower alkoxy group or an amino group, and R ^{2 is a} hydrogen atom, a lower alkanoyl group or a carbamoyl group. (Ⅱ) Wherein X, n and R ¹ are as defined above. (Ⅲ) Wherein X, n and R ¹ are as defined above and Y is a reactive residual group. (Ⅳ) Wherein X, n and R ¹ are as defined above. Wherein X and n are as defined above. ※ Note: The disclosure is based on the initial application.