14-crown-4-ether derivatives

Details 14-crown-4-ether derivatives 14-crown-4-ether derivatives

1991-05-28

1993-09-14

Lee, Mary C.

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

Organic compounds

Azo

534586, 534651, 534770, 534884, C07D32300

Patent

active

052450210

ABSTRACT:
Named compounds are useful in making dry analytical elements for assaying lithium in serum. The compounds have the general structure: ##STR1## wherein R, R.sub.1, R.sub.2 and X are as presented below:

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patent: 4659815 (1987-02-01), Pacey et al.
patent: 4734376 (1988-03-01), Pacey et al.
patent: 4762799 (1988-08-01), Seitz et al.
Kimura et al, Chemistry Letters (8), 1239-40, 1985.
English Translation of Japanese Patent 62-72683 (1987).
Abstract of Japanese Patent No. 58-46517 (1983).
Abstract of Japanese Patent No. 60-202875 (1985).
Abstract of Japanese Patent No. 63-201566 (1988).
Abstract of Japanese Patent No. 64-49352 (1989).

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