Lovastatin - Wikipedia
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Lovastatin, sold under the brand name Mevacor among others, is a statin medication, to treat high blood cholesterol and reduce the risk of cardiovascular ... Lovastatin FromWikipedia,thefreeencyclopedia Jumptonavigation Jumptosearch Chemicalcompound LovastatinClinicaldataTradenamesMevacor,Altocor,othersOthernamesMonacolinK,MevinolinAHFS/Drugs.comMonographMedlinePlusa688006Licensedata US DailyMed: Lovastatin RoutesofadministrationBymouthATCcodeC10AA02(WHO)LegalstatusLegalstatus US:℞-only PharmacokineticdataBioavailability<5%[1]Proteinbinding>98%[1]MetabolismLiver(CYP3AandCYP2C8substrate)[1]Eliminationhalf-life2–5hours[1]ExcretionFaeces(83%),urine(10%)[1]Identifiers IUPACname (1S,3R,7S,8S,8aR)-8-{2-[(2R,4R)-4-Hydroxy-6-oxooxan-2-yl]ethyl}-3,7-dimethyl-1,2,3,7,8,8a-hexahydronaphthalen-1-yl(2S)-2-methylbutanoate CASNumber75330-75-5 YPubChemCID53232IUPHAR/BPS2739DrugBankDB00227 YChemSpider48085 YUNII9LHU78OQFDKEGGD00359 YChEBICHEBI:40303 YChEMBLChEMBL503 YCompToxDashboard(EPA)DTXSID5020784ECHAInfoCard100.115.931ChemicalandphysicaldataFormulaC24H36O5Molarmass404.547 g·mol−13Dmodel(JSmol)Interactiveimage SMILES O=C(O[C@@H]1[C@H]3C(=C/[C@H](C)C1)\C=C/[C@@H]([C@@H]3CC[C@H]2OC(=O)C[C@H](O)C2)C)[C@@H](C)CC InChI InChI=1S/C24H36O5/c1-5-15(3)24(27)29-21-11-14(2)10-17-7-6-16(4)20(23(17)21)9-8-19-12-18(25)13-22(26)28-19/h6-7,10,14-16,18-21,23,25H,5,8-9,11-13H2,1-4H3/t14-,15-,16-,18+,19+,20-,21-,23-/m0/s1 YKey:PCZOHLXUXFIOCF-BXMDZJJMSA-N Y (verify) Lovastatin,soldunderthebrandnameMevacoramongothers,isastatinmedication,totreathighbloodcholesterolandreducetheriskofcardiovasculardisease.[2]Itsuseisrecommendedtogetherwithlifestylechanges.[2]Itistakenbymouth.[2] Commonsideeffectsincludediarrhea,constipation,headache,musclespains,rash,andtroublesleeping.[2]Serioussideeffectsmayincludeliverproblems,musclebreakdown,andkidneyfailure.[2]Useduringpregnancymayharmthebabyanduseduringbreastfeedingisnotrecommended.[3]Itworksbydecreasingtheliver'sabilitytoproducecholesterolbyblockingtheenzymeHMG-CoAreductase.[2] Lovastatinwaspatentedin1979andapprovedformedicalusein1987.[4]ItisontheWorldHealthOrganization'sListofEssentialMedicines.[5]Itisavailableasagenericmedication.[2]In2019,itwasthe95thmostcommonlyprescribedmedicationintheUnitedStates,withmorethan8 millionprescriptions.[6][7] Contents 1Medicaluses 2Sideeffects 2.1Contraindications 2.2Interactions 3Mechanismofaction 4History 4.1Biosynthesis 4.2Totalsynthesis 5Societyandculture 5.1Naturalsources 5.2Brandnames 5.3Otherapplications 6Seealso 7References 8Externallinks Medicaluses[edit] Theprimaryusesoflovastatinisforthetreatmentofdyslipidemiaandthepreventionofcardiovasculardisease.[8]Itisrecommendedtobeusedonlyafterothermeasures,suchasdiet,exercise,andweightreduction,havenotimprovedcholesterollevels.[8] Sideeffects[edit] Lovastatinisusuallywelltolerated,withthemostcommonsideeffectsbeing,inapproximatelydescendingorderoffrequency:creatinephosphokinaseelevation,flatulence,abdominalpain,constipation,diarrhoea,muscleachesorpains,nausea,indigestion,weakness,blurredvision,rash,dizzinessandmusclecramps.[9]Aswithallstatindrugs,itcanrarelycausemyopathy,hepatotoxicity(liverdamage),dermatomyositisorrhabdomyolysis.[9]Thiscanbelife-threateningifnotrecognisedandtreatedintime,soanyunexplainedmusclepainorweaknesswhilstonlovastatinshouldbepromptlymentionedtotheprescribingdoctor.Otheruncommonsideeffectsthatshouldbepromptlymentionedtoeithertheprescribingdoctororanemergencymedicalserviceinclude:[10] musclepain,tenderness,orweakness lackofenergy weakness fever darkcoloredurine jaundice:yellowingoftheskinoreyes painintheupperrightpartofthestomach nausea unusualbleedingorbruising lossofappetite flu-likesymptoms rash hives itching difficultybreathingorswallowing swellingoftheface,throat,tongue,lips,eyes,hands,feet,ankles,orlowerlegs hoarseness Theselessserioussideeffectsshouldstillbereportediftheypersistorincreaseinseverity:[10] constipation memorylossorforgetfulness confusion Contraindications[edit] Contraindications,conditionsthatwarrantwithholdingtreatmentwithlovastatin,includepregnancy,breastfeeding,andliverdisease.Lovastatiniscontraindicatedduringpregnancy(PregnancyCategoryX);itmaycausebirthdefectssuchasskeletaldeformitiesorlearningdisabilities.Owingtoitspotentialtodisruptinfantlipidmetabolism,lovastatinshouldnotbetakenwhilebreastfeeding.[11]Patientswithliverdiseaseshouldnottakelovastatin.[12] Interactions[edit] Aswithatorvastatin,simvastatin,andotherstatindrugsmetabolizedviaCYP3A4,drinkinggrapefruitjuiceduringlovastatintherapymayincreasetheriskofsideeffects.Componentsofgrapefruitjuice,theflavonoidnaringin,orthefuranocoumarinbergamottininhibitCYP3A4invitro,[13]andmayaccountfortheinvivoeffectofgrapefruitjuiceconcentratedecreasingthemetabolicclearanceoflovastatin,andincreasingitsplasmaconcentrations.[14] Mechanismofaction[edit] Lovastatinisaninhibitorof3-hydroxy-3-methylglutaryl-coenzymeAreductase(HMG-CoAreductase),anenzymethatcatalyzestheconversionofHMG-CoAtomevalonate.[15] MevalonateisarequiredbuildingblockforcholesterolbiosynthesisandlovastatininterfereswithitsproductionbyactingasareversiblecompetitiveinhibitorforHMG-CoA,whichbindstotheHMG-CoAreductase.Lovastatinisaprodrug,aninactivelactoneinitsnativeform,thegamma-lactoneclosedringforminwhichitisadministered,ishydrolysedinvivototheβ-hydroxyacidopenringform;whichistheactiveform. Lovastatinandotherstatinshavebeenstudiedfortheirchemopreventiveandchemotherapeuticeffects.Nosucheffectswereseenintheearlystudies.[16]Morerecentinvestigationsrevealedsomechemopreventiveandtherapeuticeffects,forcertaintypesofcancer,especiallyincombinationofstatinswithotheranticancerdrugs.[17]Itislikelythattheseeffectaremediatedbythepropertiesofstatinstoreduceproteasomeactivity,leadingtoanaccumulationofcyclin-dependentkinaseinhibitorsp21andp27,andtosubsequentG1-phasearrest,asseenincellsofdifferentcancerlines.[18][19] History[edit] Pleurotusostreatus,theoystermushroom,naturallycontainsupto2.8%lovastatinonadryweightbasis.[20] Compactinandlovastatin,naturalproductswithapowerfulinhibitoryeffectonHMG-CoAreductase,werediscoveredinthe1970s,andtakenintoclinicaldevelopmentaspotentialdrugsforloweringLDLcholesterol.[21][22] In1982,somesmall-scaleclinicalinvestigationsoflovastatin,apolyketide-derivednaturalproductisolatedfromAspergillusterreus,inveryhigh-riskpatientswereundertaken,inwhichdramaticreductionsinLDLcholesterolwereobserved,withveryfewadverseeffects.Aftertheadditionalanimalsafetystudieswithlovastatinrevealednotoxicityofthetypethoughttobeassociatedwithcompactin,clinicalstudiescontinued. Large-scaletrialsconfirmedtheeffectivenessoflovastatin.Observedtolerabilitycontinuedtobeexcellent,andlovastatinwasapprovedbytheUSFDAin1987.[23]ItwasthefirststatinapprovedbytheFDA.[24] Lovastatinisalsonaturallyproducedbycertainhigherfungi,suchasPleurotusostreatus(oystermushroom)andcloselyrelatedPleurotusspp.[25]Researchintotheeffectofoystermushroomanditsextractsonthecholesterollevelsoflaboratoryanimalshasbeenextensive,[26][27][25][28][29][30][31][32][33][34][35][36]althoughtheeffecthasbeendemonstratedinaverylimitednumberofhumansubjects.[37] In1998,theFDAplacedabanonthesaleofdietarysupplementsderivedfromredyeastrice,whichnaturallycontainslovastatin,arguingthatproductscontainingprescriptionagentsrequiredrugapproval.[38]JudgeDaleA.KimballoftheUnitedStatesDistrictCourtfortheDistrictofUtah,grantedamotionbyCholestin'smanufacturer,Pharmanex,thattheagency'sbanwasillegalunderthe1994DietarySupplementHealthandEducationActbecausetheproductwasmarketedasadietarysupplement,notadrug.[39] Aball-and-stickmodeloflovastatin Theobjectiveistodecreaseexcesslevelsofcholesteroltoanamountconsistentwithmaintenanceofnormalbodyfunction.Cholesterolisbiosynthesizedinaseriesofmorethan25separateenzymaticreactionsthatinitiallyinvolvesthreesuccessivecondensationsofacetyl-CoAunitstoformthesix-carboncompound3-hydroxy-3-methylglutarylcoenzymeA(HMGCoA).Thisisreducedtomevalonateandthenconvertedinaseriesofreactionstotheisoprenesthatarebuilding-blocksofsqualene,theimmediateprecursortosterols,whichcyclizestolanosterol(amethylatedsterol)andfurthermetabolizedtocholesterol.Anumberofearlyattemptstoblockthesynthesisofcholesterolresultedinagentsthatinhibitedlateinthebiosyntheticpathwaybetweenlanosterolandcholesterol.Amajorrate-limitingstepinthepathwayisatthelevelofthemicrosomalenzymethatcatalyzestheconversionofHMGCoAtomevalonicacid,andthathasbeenconsideredtobeaprimetargetforpharmacologicinterventionforseveralyears.[15] HMGCoAreductaseoccursearlyinthebiosyntheticpathwayandisamongthefirstcommittedstepstocholesterolformulation.InhibitionofthisenzymecouldleadtoaccumulationofHMGCoA,awater-solubleintermediatethatis,then,capableofbeingreadilymetabolizedtosimplermolecules.Thisinhibitionofreductasewouldleadtoaccumulationoflipophylicintermediateswithaformalsterolring. LovastatinwasthefirstspecificinhibitorofHMGCoAreductasetoreceiveapprovalforthetreatmentofhypercholesterolemia.Thefirstbreakthroughineffortstofindapotent,specific,competitiveinhibitorofHMGCoAreductaseoccurredin1976,whenEndoetal.reportedthediscoveryofmevastatin,ahighlyfunctionalizedfungalmetabolite,isolatedfromculturesofPenicilliumcitrium.[40] Biosynthesis[edit] ArchitectureofthelovastatintypeIPKSsystem.Outlineddomainsareusediteratively.ACP-acylcarrierprotein,AD-alcoholdehydrogenase,AT-acyltransferase,DH-dehydratase,KS-ketoacylsynthase,KR-ketoreductase,MT-methyltransferase,ER-enoylreductase,C-condensation,TE-thioesterase.(*)-redundantdomain/inactivenotusedinthisstep. Biosynthesisoflovastatin ThebiosynthesisoflovastatinoccursviaaniterativetypeIpolyketidesynthase(PKS)pathway.ThesixgenesthatencodeenzymesthatareessentialforthebiosynthesisoflovastatinarelovB,lovC,lovA,lovD,lovG,andlovF.[41][42]ThesynthesisofdihydromonacolinLrequiresatotalof9-malonylCoa.[41]ItproceedsinthePKSpathwayuntilitreaches(E)ahexaketide,whereitundergoesaDiels-Aldercycloadditiontoformthefusedrings.AftercyclizationitcontinuesthroughthePKSpathwayuntilitreaches(I)anonaketide,whichthenundergoesreleasefromLovBthroughthethioesteraseencodedbyLovG.DihydromonacolinL,(J),thenundergoesoxidationanddehydrationviaacytochromeP450oxygenaseencodedbyLovAtoobtainmonacolinJ,(L). TheMTdomainfromlovBisactiveintheconversionof(B)to(C)whenittransfersamethylgroupfromS-adenosyl-L-methionine(SAM)tothetetraketide(C).[41]OwingtothefactthatLovBcontainsaninactiveERdomain,LovCisrequiredatspecificstepstoobtainfullyreducedproducts.ThedomainorganizationofLovB,LovC,LovGandLovFisshowninFigure2.TheinactiveERdomainoflovBisshownwithanovalandwhereLovCactsintranstoLovBisshownwitharedbox. Inaparallelpathway,thediketidesidechainoflovastatinissynthesizedbyanotherhighlyreducingtypeIpolyketidesynthaseenzymeencodedbyLovF.Lastly,thesidechain,2-methylbutyrate(M)iscovalentlyattachedtoC-8hydroxygroupofmonacolinJ(L)byatransesteraseencodedbyLovDtoformlovastatin. Totalsynthesis[edit] AmajorbulkofworkinthesynthesisoflovastatinwasdonebyM.Hiramainthe1980s.[43] [44] Hiramasynthesizedcompactinandusedoneoftheintermediatestofollowadifferentpathtogettolovastatin.Thesyntheticsequenceisshownintheschemesbelow.Theγ-lactonewassynthesizedusingYamadamethodologystartingwithglutamicacid.Lactoneopeningwasdoneusinglithiummethoxideinmethanolandthensilylationtogiveaseparablemixtureofthestartinglactoneandthesilylether.ThesilyletheronhydrogenolysisfollowedbyCollinsoxidationgavethealdehyde.Stereoselectivepreparationof(E,E)-dienewasaccomplishedbyadditionoftrans-crotylphenylsulfoneanion,followedbyquenchingwithAc2Oandsubsequentreductiveeliminationofsulfoneacetate.Condensationofthiswithlithiumanionofdimethylmethylphosphonategavecompound1.Compound2wassynthesizedasshownintheschemeinthesyntheticprocedure.Compounds1and2werethencombinedusing1.3eqsodiumhydrideinTHFfollowedbyrefluxinchlorobenzenefor82hrundernitrogentogettheenone3. Simpleorganicreactionswereusedtogettolovastatinasshowninthescheme. Cholesterolbiosyntheticpathway HMGCoAreductasereaction BiosynthesisusingDiels-Aldercatalyzedcyclization Biosynthesisusingbroadlyspecificacyltransferase Synthesisofcompounds1and2 Completelovastatinsynthesis Societyandculture[edit] Naturalsources[edit] Lovastatinisanaturallyoccurringcompoundfoundinlowconcentrationsinfoodsuchasoystermushrooms,[45]redyeastrice,[46]andPu-erh.[47] Brandnames[edit] Mevacor,Advicor(asacombinationwithniacin),Altocor,Altoprev Otherapplications[edit] Inplantphysiology,lovastatinhasoccasionallybeenusedasinhibitorofcytokininbiosynthesis.[48] Seealso[edit] Medicinalfungi References[edit] ^abcdeNeuvonen,PJ;Backman,JT;Niemi,M(2008)."Pharmacokineticcomparisonofthepotentialover-the-counterstatinssimvastatin,lovastatin,fluvastatinandpravastatin".ClinicalPharmacokinetics.47(7):463–74.doi:10.2165/00003088-200847070-00003.PMID 18563955.S2CID 11716425. ^abcdefg"LovastatinMonographforProfessionals".Drugs.com.AmericanSocietyofHealth-SystemPharmacists.Retrieved3March2019. 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Externallinks[edit] MediarelatedtoLovastatinatWikimediaCommons "Lovastatin".DrugInformationPortal.U.S.NationalLibraryofMedicine. vteLipid-modifyingagents(C10)GItractCholesterolabsorptioninhibitors,NPC1L1 Ezetimibe SCH-48461 Bileacidsequestrants/resins(LDL) Colesevelam Colestilan Colestipol Colestyramine Colextran LiverStatins(HMG-CoAreductase,LDL) Atorvastatin Cerivastatin‡ Fluvastatin Lovastatin Mevastatin Pitavastatin Pravastatin Rosuvastatin Simvastatin# Niacinandderivatives(HDLandLDL) Acipimox Aluminiumnicotinate Niacin Niceritrol Nicofuranose Nicotinylalcohol MTTPinhibitors(VLDL) Dirlotapide Lomitapide Mitratapide ATPcitratelyaseinhibitors(LDL) Bempedoicacid BloodvesselsFibrates(PPAR) Aluminiumclofibrate Bezafibrate Cholinefenofibrate Ciprofibrate Clinofibrate Clofibrate‡ Clofibride Etofibrate Fenofibrate Gemfibrozil Nafenopin Pemafibrate Ronifibrate Simfibrate CETPinhibitors(HDL) Anacetrapib† Dalcetrapib§ Evacetrapib§ Obicetrapib† Torcetrapib§ PCSK9inhibitors(LDL) Alirocumab Bococizumab Evolocumab Combinations Amlodipine/atorvastatin Bempedoicacid/ezetimibe Ezetimibe/atorvastatin Ezetimibe/rosuvastatin Ezetimibe/simvastatin Fenofibrate/pravastatin Fenofibrate/simvastatin Niacin/laropiprant Niacin/lovastatin Niacin/simvastatin Other Alipogenetiparvovec Azacosterol Azalanstat Benfluorex‡ Darapladib§ Dextrothyroxine‡ Inclisiran Lapaquistat§ Magnesiumpyridoxal5-phosphateglutamate Meglutol Mipomersen Omega-3-triglycerides Policosanol Probucol Tiadenol Triparanol‡ Volanesorsen #WHO-EM ‡Withdrawnfrommarket Clinicaltrials: †PhaseIII §NevertophaseIII vteXenobiotic-sensingreceptormodulatorsCAR Agonists:6,7-Dimethylesculetin Amiodarone Artemisinin Benfuracarb Carbamazepine Carvedilol Chlorpromazine Chrysin CITCO Clotrimazole Cyclophosphamide Cypermethrin DHEA(prasterone) Efavirenz Ellagicacid Griseofulvin Methoxychlor Mifepristone Nefazodone Nevirapine Nicardipine Octicizer Permethrin Phenobarbital Phenytoin Pregnanedione(5β-dihydroprogesterone) Reserpine TCPOBOP Telmisartan Tolnaftate Troglitazone Valproicacid Antagonists:3,17β-Estradiol 3α-Androstanol 3α-Androstenol 3β-Androstanol 17-Androstanol AITC Ethinylestradiol Meclizine NigramideJ Okadaicacid PK-11195 S-07662 T-0901317 PXR Agonists:17α-Hydroxypregnenolone 17α-Hydroxyprogesterone Δ4-Androstenedione Δ5-Androstenediol Δ5-Androstenedione AA-861 Allopregnanediol Allopregnanedione(5α-dihydroprogesterone) Allopregnanolone(brexanolone) Alpha-Lipoicacid Ambrisentan AMI-193 Amlodipinebesylate Antimycotics Artemisinin Aurothioglucose Bileacids Bithionol Bosentan Bumecaine Cafestol Cephaloridine Cephradine Chlorpromazine Ciglitazone Clindamycin Clofenvinfos Chloroxine Clotrimazole Colforsin Corticosterone Cyclophosphamide Cyproteroneacetate Demecolcine Dexamethasone DHEA(prasterone) DHEA-S(prasteronesulfate) Dibunatesodium Diclazuril Dicloxacillin Dimercaprol Dinaline Docetaxel Docusatecalcium Dodecylbenzenesulfonicacid Dronabinol Droxidopa Eburnamonine Ecopipam Enzacamene EpothiloneB Erythromycin Famprofazone Febantel Felodipine Fenbendazole Fentanyl Flucloxacillin Fluorometholone Griseofulvin Guggulsterone Haloprogin Hetacillinpotassium Hyperforin Hypericumperforatum(StJohn'swort) Indinavirsulfate Lasalocidsodium Levothyroxine Linolenicacid LOE-908 Loratadine Lovastatin Meclizine Metacycline Methylprednisolone Metyrapone Mevastatin Mifepristone Nafcillin Nicardipine Nicotine Nifedipine Nilvadipine Nisoldipine Norelgestromin Omeprazole Orlistat Oxatomide Paclitaxel Phenobarbital Piperine Plicamycin Prednisolone Pregnanediol Pregnanedione(5β-dihydroprogesterone) Pregnanolone Pregnenolone Pregnenolone16α-carbonitrile Proadifen Progesterone Quingestrone Reserpine Reversetriiodothyronine Rifampicin Rifaximin Rimexolone Riodipine Ritonavir Simvastatin Sirolimus Spironolactone Spiroxatrine SR-12813 Suberoylanilide Sulfisoxazole Suramin Tacrolimus Tenylidone Terconazole Testosteroneisocaproate Tetracycline Thiamylalsodium Thiothixene Thonzoniumbromide Tianeptine Troglitazone 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