Phenoxyalkylcarboxylic acid derivatives and process for their pr

Details Phenoxyalkylcarboxylic acid derivatives and process for their pr Phenoxyalkylcarboxylic acid derivatives and process for their pr

1989-02-23

1991-01-15

Shippen, Michael L.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acid esters

560 11, 562426, 562429, C07C32100

Patent

active

049855859

ABSTRACT:
Phenoxyalkylcarboxylic acid derivatives of the following formula, ##STR1## wherein R.sup.1 indicates hydrogen atom, methyl group or ethyl group, m is an integer from 2 to 5, and n is an integer from 3 to 8, X.sup.1 and X.sup.2 each independently represent sulfur atom, oxygen atom, sulfinyl group or sulfonyl group, proviso X.sup.1 and X.sup.2 are not simultaneously oxygen atom; their alkali salts and hydrates thereof are useful as antiallergic agents.

REFERENCES:
patent: 4507498 (1985-03-01), Carson
Burger, "Medicinal Chemistry," 2nd Ed. pp. 72-88 (1960).

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