purine uprine pruine rpuine urpine rupine puirne upirne piurne ipurne uiprne iuprne priune rpiune pirune iprune ripune irpune uripne ruipne uirpne iurpne riupne irupne purnie uprnie prunie rpunie urpnie rupnie punrie upnrie pnurie npurie unprie nuprie prnuie rpnuie pnruie npruie rnpuie nrpuie urnpie runpie unrpie nurpie rnupie nrupie puinre upinre piunre ipunre uipnre iupnre punire upnire pnuire npuire unpire nupire pinure ipnure pniure npiure inpure nipure uinpre iunpre unipre nuipre inupre niupre prinue rpinue pirnue iprnue ripnue irpnue prniue rpniue pnriue npriue rnpiue nrpiue pinrue ipnrue pnirue npirue inprue niprue rinpue irnpue rnipue nripue inrpue nirpue urinpe ruinpe uirnpe iurnpe riunpe irunpe urnipe runipe unripe nuripe rnuipe nruipe uinrpe iunrpe unirpe nuirpe inurpe niurpe rinupe irnupe rniupe nriupe inrupe nirupe purien uprien pruien rpuien urpien rupien puiren upiren piuren ipuren uipren iupren priuen rpiuen piruen ipruen ripuen irpuen uripen ruipen uirpen iurpen riupen irupen purein uprein pruein rpuein urpein rupein puerin uperin peurin epurin ueprin euprin preuin rpeuin peruin epruin repuin erpuin urepin ruepin uerpin eurpin reupin erupin puiern upiern piuern ipuern uipern iupern pueirn upeirn peuirn epuirn uepirn eupirn pieurn ipeurn peiurn epiurn iepurn eipurn uieprn iueprn ueiprn euiprn ieuprn eiuprn prieun rpieun pireun ipreun ripeun irpeun preiun rpeiun periun epriun repiun erpiun pierun iperun peirun epirun ieprun eiprun riepun irepun reipun eripun ierpun eirpun uriepn ruiepn uirepn iurepn riuepn iruepn ureipn rueipn ueripn euripn reuipn eruipn uierpn iuerpn ueirpn euirpn ieurpn eiurpn rieupn ireupn reiupn eriupn ierupn eirupn purnei uprnei prunei rpunei urpnei rupnei punrei upnrei pnurei npurei unprei nuprei prnuei rpnuei pnruei npruei rnpuei nrpuei urnpei runpei unrpei nurpei rnupei nrupei pureni upreni prueni rpueni urpeni rupeni puerni uperni peurni epurni ueprni euprni preuni rpeuni peruni epruni repuni erpuni urepni ruepni uerpni eurpni reupni erupni puneri upneri pnueri npueri unperi nuperi puenri upenri peunri epunri uepnri eupnri pneuri npeuri penuri epnuri nepuri enpuri unepri nuepri uenpri eunpri neupri enupri prneui rpneui pnreui npreui rnpeui nrpeui prenui rpenui pernui eprnui repnui erpnui pnerui nperui penrui epnrui neprui enprui rnepui nrepui renpui ernpui nerpui enrpui urnepi runepi unrepi nurepi rnuepi nruepi urenpi ruenpi uernpi eurnpi reunpi erunpi unerpi nuerpi uenrpi eunrpi neurpi enurpi rneupi nreupi renupi ernupi nerupi enrupi puiner upiner piuner ipuner uipner iupner punier upnier pnuier npuier unpier nupier pinuer ipnuer pniuer npiuer inpuer nipuer uinper iunper uniper nuiper inuper niuper puienr upienr piuenr ipuenr uipenr iupenr pueinr upeinr peuinr epuinr uepinr eupinr pieunr ipeunr peiunr epiunr iepunr eipunr uiepnr iuepnr ueipnr euipnr ieupnr eiupnr puneir upneir pnueir npueir unpeir nupeir puenir upenir peunir epunir uepnir eupnir pneuir npeuir penuir epnuir nepuir enpuir unepir nuepir uenpir eunpir neupir enupir pineur ipneur pnieur npieur inpeur nipeur pienur ipenur peinur epinur iepnur eipnur pneiur npeiur peniur epniur nepiur enpiur inepur niepur ienpur einpur neipur enipur uinepr iunepr uniepr nuiepr inuepr niuepr uienpr iuenpr ueinpr euinpr ieunpr eiunpr uneipr nueipr uenipr eunipr neuipr enuipr ineupr nieupr ienupr einupr neiupr eniupr prineu rpineu pirneu iprneu ripneu irpneu prnieu rpnieu pnrieu nprieu rnpieu nrpieu pinreu ipnreu pnireu npireu inpreu nipreu rinpeu irnpeu rnipeu nripeu inrpeu nirpeu prienu rpienu pirenu iprenu ripenu irpenu preinu rpeinu perinu eprinu repinu erpinu piernu ipernu peirnu epirnu ieprnu eiprnu riepnu irepnu reipnu eripnu ierpnu eirpnu prneiu rpneiu pnreiu npreiu rnpeiu nrpeiu preniu rpeniu perniu eprniu repniu erpniu pneriu nperiu penriu epnriu nepriu enpriu rnepiu nrepiu renpiu ernpiu nerpiu enrpiu pineru ipneru pnieru npieru inperu niperu pienru ipenru peinru epinru iepnru eipnru pneiru npeiru peniru epniru nepiru enpiru inepru niepru ienpru einpru neipru enipru rinepu irnepu rniepu nriepu inrepu nirepu rienpu irenpu reinpu erinpu iernpu eirnpu rneipu nreipu renipu ernipu neripu enripu inerpu nierpu ienrpu einrpu neirpu enirpu urinep ruinep uirnep iurnep riunep irunep urniep runiep unriep nuriep rnuiep nruiep uinrep iunrep unirep nuirep inurep niurep rinuep irnuep rniuep nriuep inruep niruep urienp ruienp uirenp iurenp riuenp iruenp ureinp rueinp uerinp eurinp reuinp eruinp uiernp iuernp ueirnp euirnp ieurnp eiurnp rieunp ireunp reiunp eriunp ierunp eirunp urneip runeip unreip nureip rnueip nrueip urenip ruenip uernip eurnip reunip erunip unerip nuerip uenrip eunrip neurip enurip rneuip nreuip renuip ernuip neruip enruip uinerp iunerp unierp nuierp inuerp niuerp uienrp iuenrp ueinrp euinrp ieunrp eiunrp uneirp nueirp uenirp eunirp neuirp enuirp ineurp nieurp ienurp einurp neiurp eniurp rineup irneup rnieup nrieup inreup nireup rienup irenup reinup erinup iernup eirnup rneiup nreiup reniup erniup neriup enriup inerup nierup ienrup einrup neirup enirup
Note: these 'words' (valid or invalid) are all the permutations of the word purine. These words are obtained by scrambling the letters in purine.