I know this is an old thread, but it seems to me that you all missed a very simple synthesis tech which anyone could pull off and test the activity of this compound themselves.
Iodine is the most potent leaving group that I know of.
A substitution reaction should be possible by adding and heating a solution of NaOH to a sample of 2C-I how much however is up to you to decide, I personally do not and will not order RC's online and so have none and have only sampled 2C-E which I preferred to any acid trip.
The activity 2C-OH does intrigue me however so if any of you decide to try this post about your exp.