6-tetrahydro-3-carboalkoxypyridines such as arecoline and salts of 1,2,5,6-tetrahydro-3-carboalkoxypyridines and arecoline hydrobromide - Patent CA-2212449-C.
spectrometry assay for determination of nicotine and metabolites, caffeine and arecoline in breast milk, Rapid Communications in Mass Spectrometry, 2007, 21 (16):