Jd. Ehrhardt, EXTRACTIVE METHYLATION OF CLOPAMIDE AND INDAPAMIDE - STRUCTURES OF THE DERIVATIVES, Biological mass spectrometry, 22(5), 1993, pp. 295-301
Extractive methylation of clopamide and indapamide gives rise to the f
ormation of several derivatives. Their positive and negative ion mass
spectra are described and their respective structures established. Thi
s derivatization procedure seems to be unsuitable for a quantitative a
nalysis of these two diuretics, unless a deuterated analogue or a comp
ound with the same chemical functions is used as the internal standard
.