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