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