DL Reynolds et al. Determination of MDL 201,012 at femtomole/millilitre levels in human plasma by liquid chromatography with electrochemical detection Biomed Chromatogr. 1992, 6(6), 295-9. [online]
JP Carter et al. Analogues of oxybutynin. Synthesis and antimuscarinic and bladder activity of some substituted 7-amino-1-hydroxy-5-heptyn-2-ones and related compounds. J. Med. Chem. 1991, 34(10), 3065-74. [online]
Chemical Name: 1-cyclobutyl-7-(dimethylamino)-1-hydroxy-1-phenylhept-5-yn-2-one; aka CDHO