Compounds of {HEAD ~ Formula} 9, where A is an alkenyl group having one or more double bonds can be made for example, by synthetic schemes well known to the practicing organic chemist; for example by Wittig and like reactions, or by introduction of a double bond by elimination of {TAIL ~ halogen} from an alpha halo arylalkyl carboxylic acid, ester or like carboxaldehyde 
Compounds of { HEAD ~ Formula } 9 , where A is an alkenyl group having one or more double bonds can be made for example , by synthetic schemes well known to the practicing organic chemist ; for example by Wittig and like reactions , or by introduction of a double bond by elimination of { TAIL ~ halogen } from an alpha halo arylalkyl carboxylic acid , ester or like carboxaldehyde
OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH