The textbook was compiled by the team of A.P. Arzamastsev Department of Pharmaceutical and Toxicological Chemistry of A.P. Nelyubin Institute of Pharmacy of I.M. Sechenov First Moscow State Medical University (Sechenov University) in accordance with up-to-date practices, as well as traditions of Russian school of Pharmaceutical Chemistry, introduced by RAMS academician A.P. Arzamastsev.The textbook is intended for foreign students enrolled in program 33.05.01 "Pharmacy", and can be used by interns, post-graduate students and students in the related fi elds.