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