Darvesh S, Darvesh KV, McDonald RS, Mataija D, Walsh R, Mothana S, Lockridge O, Martin E (2008) <br />Carbamates with differential mechanism of inhibition toward acetylcholinesterase and butyrylcholinesterase<br /><i>Journal of Medicinal Chemistry</i> <b>51</b>: 4200<br /><br />Clarke D, Gilbert BC, Hanson P, Kirk CM (1978) <br />Heterocyclic free radicals. Part 8. The influence of the structure and the conformation of the side-chain on the properties of phenothiazine cation-radicals substituted at nitrogen<br /><i>J Chem Soc Perkin 2</i> <br /><br />