First off, the author of the synthesis claims 4-Methoxy-PCP to posses a potency of about 70% of PCP's, while Table IV in the second article you listed claims it to have a potency of 10% of PCP's; a serious discrepancy. Does anyone have enough experience to give a third opinion? Also, after reading the text, I believe that the author of the synthesis may also have been wrong in that the piperidine substitution would not yield a product equally potent or even with the same qualitative effects. It would be disappointing to go through all the trouble of creating such a compound only to find it has a "street use to cause a barbiturate-like sedation." Do you agree with my interpretation?