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