The present invention relates to optionally substituted pyridopyrimidine 2,4 diones or optionally substituted {TAIL ~ pyridopyrimidine 2 ones}, i.e., compounds of Formula I: ##STR1## wherein: Y is {HEAD ~ CH2} or C  
The present invention relates to optionally substituted pyridopyrimidine 2,4 diones or optionally substituted { TAIL ~ pyridopyrimidine 2 ones } , i.e. , compounds of Formula I : # # STR1 # # wherein : Y is { HEAD ~ CH2 } or C
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH