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. Author manuscript; available in PMC: 2012 Apr 20.
Published in final edited form as: Chem Phys Lett. 2011 Apr 20;506(4-6):135–138. doi: 10.1016/j.cplett.2011.03.048

Table 1.

Methylation of COMT Ligands

graphic file with name nihms-285497-t0003.jpg

R Ligand Meta/Para Ratio [6]
-CH2CH2NH3+ Dopamine 4.2
-CH2CH(NH3+)COO Levodopa 15.4