SUBSTITUTED THEOPHYLLINE SALTS

摘要

There is provided a novel class of 8-substituted theophylline salts of the formula: < IMG > (II) wherein n is an integer of from 2 to 6; R and R' are independently 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.