Decapeptide -12(link:https://www.bloomtechz.com/synthetic-chemical/peptide/decapeptide-12-cas-137665-91-9.html) yog ib qho siv dav hauv polypeptide molecule, thiab nws cov txheej txheem synthesis kuj nthuav tawm ntau haiv neeg thiab tsis yooj yim vim muaj ntau daim ntawv thov. Kab lus no feem ntau yog qhia txog kaum txoj kev siv hluavtaws ntawm Decapeptide-12, uas yog: peptide-based solid-phase synthesis, kua-theem synthesis, kua-theem hydrogenation, tshuaj hloov kho ntawm pab pawg tiv thaiv, anchoring lub tswv yim, isomer nto paub txog txoj kev, nyem chemical tshuaj tiv thaiv txoj kev, condensation tshuaj tiv thaiv txoj kev, enzyme catalysis txoj kev thiab cov khoom hauv lub xeev txoj kev sib cuam tshuam.
1. Peptidyl solid-phase synthesis method:
Peptide-based solid-phase synthesis method yog ib hom Decapeptide -12 synthesis method, uas yog raws li lub hauv paus ntsiab lus ntawm peptide synthesis ntawm cov ntaub ntawv polymer xws li polystyrene resin los yog ntxeem tau silica gel. Txoj kev no yuav tsum muaj N-protecting pab pawg peptide acid uas nws C-terminus txuas nrog cov khoom-theem scaffold kom txuas nrog cov amino acid tom ntej los ntawm N carboxylating tus neeg sawv cev (xws li DCC), carbonic anhydride lossis azoyl ntsev, thiab lwm yam. txhua kauj ruam cov tshuaj tiv thaiv, pab pawg tiv thaiv yuav tsum raug tshem tawm, thiab pawg N yuav tsum tau tiv thaiv dua nrog pab pawg tiv thaiv tshiab. Thaum kawg, polypeptide molecule raug tso tawm los ntawm scaffold los ntawm cov tshuaj reagents xws li hydrofluoric acid lossis sodium hydroxide kom tau Decapeptide-12.
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2. Liquid phase synthesis method:
Txoj kev ua kua-theem synthesis yog ib txoj kev sib xyaw ua ke ntawm Decapeptide -12, uas yog raws li lub hauv paus ntsiab lus ntawm synthesis hauv kev daws. Txoj kev siv N-tiv thaiv pab pawg polypeptide acid lossis acylated amino acid ua cov khoom pib, uas txuas nrog N carboxylating tus neeg saib xyuas thiab amino acid / polypeptide acid. Tom qab txhua kauj ruam cov tshuaj tiv thaiv, pawg tiv thaiv yuav tsum raug tshem tawm, thiab pawg N yuav tsum tau tiv thaiv dua nrog pab pawg tiv thaiv tshiab. Thaum kawg, nws yog tsim los ntawm cov tshuaj reagents xws li nyiaj nitrate thiab sodium trimethylsilyl fluoride.
3. Ua kua theem hydrogenation txoj kev:
Txoj kev ua kua-theem hydrogenation yog ib txoj kev hluavtaws ntawm Decapeptide-12, uas yog raws li lub hauv paus ntsiab lus ntawm peptide synthesis los ntawm kev txo cov tshuaj reactants nyob rau hauv cov kua system nyob rau hauv lub xub ntiag ntawm ib tug catalyst. Txoj kev no yuav tsum tau siv cov amino acids los yog polypeptide acids raws li cov ntaub ntawv pib, thiab amide daim ntawv cog lus nrog kev tiv thaiv C-terminal amides thiab coj los tiv thaiv pawg derivatives. Nyob rau hauv lub xub ntiag ntawm ib tug catalyst (xws li txhuas hydride, hydrogen los yog sodium borohydride, thiab lwm yam), lub amide daim ntawv cog lus yuav undergo ib tug txo cov tshuaj tiv thaiv kom tau ib tug ntev polypeptide saw mus txog rau thaum lub sib sau ua ke ntawm Decapeptide -12 tiav.
4. Kev tiv thaiv pab pawg tshuaj hloov kho txoj kev:
Txoj kev tiv thaiv pab pawg tshuaj hloov kho yog ib txoj hauv kev los ua ke Decapeptide-12 los ntawm kev hloov kho cov saw hlau polypeptide uas twb muaj lawm nrog ib pab pawg tiv thaiv tshwj xeeb. Txoj kev no yuav tsum tau siv cov saw hlau polypeptide uas twb muaj lawm thiab siv cov kev tiv thaiv tshwj xeeb ntawm pab pawg tshuaj hloov kho cov tswv yim (xws li Boc, Fmoc, thiab lwm yam) los tswj kev sib txuas ntawm cov amino acids thiab tshem tawm cov pab pawg tiv thaiv. Decapeptide-12 tuaj yeem ua tiav zoo los ntawm kev rov ua cov kauj ruam ntawm kev hloov pauv polypeptide thiab tshem tawm cov pab pawg tiv thaiv.
5. Anchor Strategy method:
Txoj hauv kev zoo tshaj plaws yog ib txoj hauv kev uas lub hauv paus ntawm Decapeptide -12 thiab cov ntsiab lus thauj tog rau nkoj stripped los ntawm ob qho kawg yog synthesized nyias, thiab ces ob qho tib si synthesized rau hauv ib qho los ntawm cov tshuaj tiv thaiv condensation. Nyob rau hauv txoj kev no, pawg tiv thaiv ntawm lub thauj tog rau nkoj taw tes yuav tsum tau txuas mus rau lub C-terminus, thiab ces stripped tawm los ntawm cov tshuaj tiv thaiv ntawm n-hexanal thiab piperazine acetic acid los tsim lipopeptide ntawm lub hauv paus. Nyob rau tib lub sijhawm, lwm pab pawg tiv thaiv txuas nrog N- lossis C-terminus, thiab cov amino acid chains ntawm ob qho kawg yog tsim los ntawm kev hloov kho tshuaj ntawm pab pawg tiv thaiv sib txawv. Thaum kawg, ob qho tib si tau muab tso ua ke rau hauv Decapeptide-12 los ntawm cov tshuaj tiv thaiv condensation.
6. Isomer nto paub txoj kev:
Txoj kev paub txog isomer nto yog ib txoj kev sib txuas ntawm Decapeptide -12, uas siv lub hauv paus ntsiab lus ntawm stereochemistry kom paub txog kev sib dhos molecular. Txoj kev no yuav tsum tau siv cov amino acids los yog peptidyl pawg nrog tshwj xeeb stereo configurations los tsim gels los yog daim nyias nyias nyob rau hauv dej, ua rau lawv xaiv adsorb lwm molecules los sib sau ua ke Decapeptide-12.
7. Nyem tshuaj tiv thaiv txoj kev:
Txoj kev txhaj tshuaj tiv thaiv nyem yog ib txoj kev hluavtaws ntawm Decapeptide -12, uas yog ib txoj hauv kev sib txuas ntawm ob lub molecules kom nrawm, ua tau zoo thiab tshwj xeeb. Cov txheej txheem suav nrog kev siv ob lub molecules sib txawv nrog cov pab pawg kawg uas txuas thaum koom nrog cov tooj liab (I)-catalyzed trichlorethylene / tooj liab nitrate cov tshuaj tiv thaiv rau Decapeptide-12.
Cov kauj ruam tseem ceeb ntawm txoj kev no yog raws li nram no:
7.1. Synthesis of Decapeptide-12: Decapeptide-12 nws tus kheej yuav tsum tau muab ua ke ua ntej. Qhov no tuaj yeem ua tau los ntawm txoj hauv kev xws li cov khoom siv hluav taws xob los yog kua-theem synthesis. Lub synthesized Decapeptide-12 yuav tsum tau ua kom huv si thiab txheeb xyuas kom ntseeg tau tias nws zoo thiab purity.
7.2. Taw qhia ntawm qhov chaw tshuaj lom neeg nyem: Nyob rau hauv tus txheej txheem ntawm kev sib txuas ntawm Decapeptide-12, nws yog ib qho tsim nyog los qhia cov chaw tshuaj lom neeg nyem. Cov chaw zoo li no feem ntau muaj alkynyl (-C≡C) lossis azido (-N≡N) pawg, thiab lwm yam. Cov pab pawg no tuaj yeem koom nrog hauv qhov tshwj xeeb "nias" cov tshuaj tiv thaiv thiab txuas mus rau lwm cov molecules sai thiab ua tau zoo raws li cov xwm txheej tshwj xeeb.
7.3. Synthesis of ligands los yog carrier molecules: Thaum Decapeptide -12 qhia txog cov tshuaj tiv thaiv nyem qhov chaw, lwm cov ligands lossis cov cab kuj molecules yuav tsum tau ua ke. Cov molecules no tuaj yeem ua fluorescent dyes, biomolecules, hlau ions, thiab lwm yam rau kev siv tshwj xeeb.
7.4 ib. "Nyem" cov tshuaj tiv thaiv: Decapeptide-12 thiab ligand lossis cov cab kuj molecules raug rau "nyem" cov tshuaj tiv thaiv nyob rau hauv tej yam kev mob tshwm sim. Cov tshuaj tiv thaiv no feem ntau xav tau kev siv tooj liab catalysts thiab yog nqa tawm ntawm qhov kub thiab txias. Lub sijhawm tshuaj tiv thaiv luv luv, thiab cov khoom siv tshuaj tiv thaiv tuaj yeem tau los ntawm cov kauj ruam yooj yim purification.
7.5. Kev txheeb xyuas cov khoom siv tshuaj tiv thaiv: Cov khoom siv tshuaj tiv thaiv yuav tsum tau txheeb xyuas thiab ua tus yam ntxwv. Feem ntau siv txoj kev suav nrog huab hwm coj spectrometry, nuclear magnetic resonance thiab lwm yam txuj ci. Xyuas kom cov qauv thiab purity ntawm cov tshuaj tiv thaiv cov khoom siv rau kev siv tom ntej.
Hauv kev xaus, nias chemistry cov tshuaj tiv thaiv txoj kev ntawm Decapeptide -12 yog ib qho kev ua tau zoo, yooj yim thiab tswj tau cov txheej txheem synthesis, uas muab txoj hauv kev tshiab rau kev tsim cov tshuaj polypeptide. Txoj kev no tau siv dav hauv cov tshuaj, tshuaj lom neeg, nanomaterials thiab cov ntaub ntawv tshawb fawb.
8. Condensation reaction method:
Cov txheej txheem condensation cov tshuaj tiv thaiv yog ib txoj hauv kev rau kev sib xyaw Decapeptide-12 los ntawm kev ua cov tshuaj tiv thaiv condensation ntawm ob lub monomers thiab maj mam nthuav qhov ntev thiab qhov nyuaj. Txoj kev no yuav tsum tau siv N- lossis C-terminal tiv thaiv pab pawg derivatives thiab cov amino acid chains sib raug zoo, thiab ua rau cov tshuaj tiv thaiv condensation nrog cov reagents xws li N carboxylating agents, acid chlorides los yog acid anhydrides kom txog thaum ua tiav cov txheej txheem polypeptide.
9. Enzyme-catalyzed txoj kev:
Enzyme catalysis yog ib txoj hauv kev los hloov cov substrates yooj yim rau hauv cov molecules complex, uas siv cov khoom catalytic ntawm enzymes kom ua tiav cov kev sib sau ntawm Decapeptide-12. Cov txheej txheem yuav tsum tau siv cov synthetase los yog protease thiab lub substrate tsim nyog los hloov nws mus rau hauv lub hom phiaj polypeptide saw los ntawm catalytic ua, thiab tom qab ntawd ua kom tiav cov synthesis ntawm Decapeptide-12 los ntawm txoj kev xws li tshuaj hloov kho ntawm kev tiv thaiv pab pawg.
10. Kev sib cuam tshuam hauv lub xeev:
Txoj kev sib cuam tshuam hauv lub xeev yog ib txoj hauv kev kom ua tiav kev sib dhos ntawm Decapeptide-12 hauv lub xeev ruaj khov. Txoj kev no yuav tsum tau siv cov txheej txheem siv lead ua engineering los sib sau ua ke qee cov saw luv luv amino acids rau hauv cov khoom siv lead ua los ntawm cov khoom siv xws li hydrogen bonds, ion coordination, thiab π-π kev sib cuam tshuam, thiab tom qab ntawd siv cov txheej txheem xws li dissolution thiab polycrystallization los nthuav cov siv lead ua loj. , thiab thaum kawg ua tiav Decapeptide-12.