Results In the DA-rich corpus striatum (Figure l), the 6, 7-ADTN time-concentration curves can be clearly divided into two groups, ie, those arising from the diacetyl and diisobutyryl derivatives, which produced rapid peak concentrations in the first 5-15 min, and the dibenzoyl and dipivaloyl analogues, which gave peak levels at 3 h and generally resulted in plateau-like levels over many hours. A somewhat similar effect was seen in the ...
