 Idapapo sise yii kii sele ni igbese kan sugbon o maa n koko jasi dihydropentacene ti won maa n yo hydrogen kuro ninu re ni igbese keji pelu copper gege bi amulosiwaju ba idapapo sise.A le ri awon idapo kemika acyl ti a nilo ni i dapapo sise yii latari Friedel-Crafts acylation pelu aluminum chloride.Awon iyato O tun seese ki a seto awon idapo kemika heterocyclic lati idapapo sise Elbs.. 
Awon ayika re ni ile ijosin St Jude ati ile iwe African Salem School ati ile ijosin Salvation Army.. 