We may take piperidine and coniine as examples of the methods followed in alkaloidal synthesis; these are pyridine bases.
"Scientific American Supplement, No. 623, December 10, 1887" by Various
The sirup is treated with magnesia, and the coniine dissolved out by shaking up with ether.
"Scientific American Supplement, No. 315, January 14, 1882" by Various
It also contains methyl coniine.
"Aids to Forensic Medicine and Toxicology" by W. G. Aitchison Robertson
Alkaloids are usually odorless; although nicotine, coniine, and a few others, have strong, characteristic odors.
"The Chemistry of Plant Life" by Roscoe Wilfred Thatcher