An azaphthalide 4 wherein {HEAD ~ X1} is lower alkoxy, Z1 is methyl or phenyl and Y is {TAIL ~ C6 C8 alkyl} 
An azaphthalide 4 wherein { HEAD ~ X1 } is lower alkoxy , Z1 is methyl or phenyl and Y is { TAIL ~ C6 C8 alkyl }
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL