Preparation of hydroxyphenylalanine hydrohalide salts

Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acids and salts thereof

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562444, C07C 9900, C07C10172

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active

042308836

ABSTRACT:
The invention relates to the hydrohalide salts of L-.alpha. -methyl-3,4-dihydroxyphenylalanine (methydopa). The method of preparing these and related compounds in the absence of water or other polar solvents is also shown.

REFERENCES:
patent: 2868818 (1959-01-01), Pfister et al.
patent: 3158648 (1964-11-01), Jones et al.
patent: 3830836 (1974-08-01), Soichiro et al.
patent: 3832388 (1974-08-01), Lorenz
Merck Index, 8th Ed. pp. 684 (1968).
Merck Index 9th, p. 790, #5925 (1976).

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