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1、洳≥：j、博士學(xué)位論文論文題目直扭擔(dān)酶健友洼造捶絲金盛盒趨絲金塑指導(dǎo)教師撻豎煎熬援AbstractSelectivesynthesisisallimportantdirectioninorganicchemistryEnzymaticsynthesisattractsattentionbecauseofitshighselectivitymildconditionmadhi曲rateCDsandrutineta1arecompounds

2、containingsugarwithmanysimilarlyactivegroupsItisimportanttoselectivelysynthesizetheirderivativesfordevelopingprodrugwithnewstructureTherefore，thestudyofenzymaticselectivesynthesisbysolventandsubstrateenghleeringplaysalli

3、mportantroleintheoryresearchandapplicationTheregio—selectivetransesterificationof序CD，mthl，troxerutin，naringinandhesperidinwithdivinyJdicarboxylatesandvinylalphatieesters“wascatalyzedbyenzymesInthethesis，33derivativescont

4、ainingsugarwerepreparedand23productswerenewcompoundsProductstructureswerecharacterizedandconfirmedby1HNMR，“CNMR，F(xiàn)TIRESIMSInfluencefactorsinenzymaticsynthesissuchasenzymesources，reactionsolvents，chainlengthofacyldonors，wa

5、tercontentandreactiontimewerestudiedTransesterificationofflCDwascatalyzedbythealkalineproteasefromBacillussubtilisinanhydrousDMF，furnisheddiecorresponding岔CDderivativeswitlmonoacylationoccurringattheC2secondaryhydroxylgr

6、oupsTroxemtinwasselectivelyacylatedatprimaryhydroxylofethylolcatalyzedbythealkalineproteasefromBacillussubtilisinanhydrouspyridineNaringinWaSacylatedat6“OHofglucosemoietycatalyzedbyNovozym435in2methyl一2一butan01Thecontrol

7、lableregio—selectiveacylationofruthawasproposedAnefficientsynthesisofrutinestershaSbeendevelopedEnzymaticselectivityWaSaffectedbysubstrateandsolventAlkalineproteasefromBacillussubtilisobtained3“Osubstitutedrutinestersinp

8、yridine，Novozym435provided4“O—substitutedrutinestersproductsintertbutan01TheinfluenceofultrasoundontheenzymaticreactionwasstudiedUltrasoundacceleratedenzymaticsynthesisofglucoseestersandtroxenrtinestersinnonaqueoussolven

9、tWasinvestigated，andtheinfluenceofthepower(50w，100W，120w)oftheultrasoundoperationalmanner(continuousultrasound，10rainultrasound，20minshaking)andultrasoundtimewerediscussedTheresultshowedthatacceleratedeffectofultrasoundo

10、nenzymaticreactionvariedwithchainlengthofacyldonors，andthereactiontimewasshortenedby80％whendivinylbutanedioatewasusedasaeyldonorTheactivityofenzymeunderpreultrasoundwasalsostudiedTheresultshowedthatultrasoundacceleratedt

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