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2005
Pyridine derivatives
Pyridine derivatives
R 0380
Synthesis of Triphenylmethane Derivative: Bisacodyl. — A new synthesis of the
drug bisacodyl (X) starting from easily available pyridine-2-carboxylic acid
28- 154 laxative
(I) is described. Key step of this route, that is superior to existing literature methods, is
the AlCl3-induced migration of the 2-pyridacyl group in phenyl pyridinecarboxylate
(IV) to form 4-hydroxyphenyl 2-pyridyl ketone (V). — (MEREYALA*, H. B.;
SAMBARU, K.; Indian J. Chem., Sect. B: Org. Chem. Incl. Med. Chem. 44 (2005) 3,
615-617; Spec. Gas Based Chem. Processes Div., Indian Inst. Chem. Technol.,
Hyderabad 500 007, India; Eng.) — A. Forchert
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