C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
260/242.4
C07D 473/08 (2006.01) C07F 9/6561 (2006.01) G01N 33/94 (2006.01)
Patent
CA 1215051
A B S T R A C T There is provided a novel class of 8-substituted theophylline salts of the formula: Image (II) wherein n is an integer of from 2 to 6; R and R' are inde- pendently C1-C4 alkyl; and Z is a biologically compatible counter ion, these compounds are useful as reagents in an irreversible enzyme inhibitor immunoassay for theophylline.
428612
Flentge Charles A.
Kirkemo Curtis L.
Abbott Laboratories
Goudreau Gage Dubuc
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