isibhengezo_sekhasi

55757-46-5 Boc-Cys-Ome

55757-46-5 Boc-Cys-Ome

Incazelo emfushane:

Ukubukeka amafutha noma uketshezi
MF I-C9H17NO4S
MW 235.3
Ubumsulwa 95+


Imininingwane Yomkhiqizo

Isimo sezokuthutha&indlela yokuthumela enconyiwe:
Ngomoya, ngolwandle noma nge-express

Isimo sesitoreji:
Gcina endaweni emnyama, evalwe endaweni eyomile, Emazingeni Okushisa Egumbi

Ubuncane be-oda Ubuningi:
Ukuxoxisana

Isitifiketi:
I-COA, HPLC, GC, HNMR, Assay, Water Content(KF), TLC iyatholakala

Uketshezi olunamafutha 1

Omqondofana

N-(tert-Butoxycarbonyl)-L-cysteineMethylester97%;

I-N-Boc-L-Cysteinemethylester;

i-methyl(2R) -2--[(2-methylpropan-2-yl)oxycarbonylamino]-3-sulfanylpropanoate;

N-(TERT-BUTOXYCARBONYL)-L-CYSTEINEM ETHYLESTER;

I-Methyl(tert-butoxycarbonyl)-L-cysteineate;

L-Cysteine,N- [(1,1-dimethylethoxy)carbonyl]-,methylester;

N-(TERT-BUTOXYCARBONYL)-L-CYSTEINEMETHYLESTERUSP/EP/BP;

I-BOC-L-Cysteinatemethyl

Ukupakisha kwangaphakathi

Ngokuvamile zisetshenziselwa ukupakisha impushana.Futhi zingavimbela ukukhanya kwelanga namanzi ukuba kungabi kubi.

Ukupakisha kwangaphakathi 2
Ukupakisha kwangaphakathi 1
Ukupakisha kwangaphakathi 3

ukupakisha kwangaphandle

Ibhokisi eliqinile lingavikela imikhiqizo yakho ukuthi ingaphahlazeka futhi ibe manzi.

Ukupakisha kwangaphandle 3
Ukupakisha kwangaphandle 2
Ukupakisha kwangaphandle 1

Izinhlelo zokusebenza

Yenziwe ngokusabela kwe-esterization ye-asidi ye-inorganic noma i-organic acid noma utshwala.Utshwala noma i-phenol noma i-anhydride ene-acidic, utshwala ne-ethylene, i-asidi yamahhala kanye nokuphuma kokuphuma kwe-nitrogen okunamafutha nakho kungakhiqiza i-ester.I-hydrogen eku-alpha-carbon kuma-molecule e-ester ilahlekelwa uphuzo oludakayo lwengqamuzana nenye i-ester yengqamuzana ngaphansi kwezimo ze-alkali ukuze ikhiqize i-β-keto ester, ebizwa ngokuthi i-ester contraction reaction.Isibonelo, i-acetyl acetate ikhiqizwa ukukhiqiza i-acetyl ethyl acetate.Lokhu kusabela kubaluleke kakhulu ku-organic synthesis.
Igama le-ester livela egameni elihambisanayo le-carboxylic acid notshwala noma i-phenol, njengokuthi "i-asidi ethile ne-ester ethile".I-Circle esters ibizwa ngokuthi i-lactone (lactone).Izici zamakhemikhali ze-ester zifana ne-amyl niche anhydride, ejwayele ukusabela kwe-hydrolysis, utshwala kanye ne-ammonia.I-ester yezinga eliphansi iwuketshezi olunephunga elimnandi futhi oluguquguqukayo olungenambala, futhi i-ester ethuthukisiwe iqinile.I-Estes izincibilikisi ezibalulekile nezinto zokwenziwa zokwenziwa, kanti amanye ama-ester ayizidakamizwa ngokwazo.Ngokohlobo lwe-asidi, i-ester ingahlukaniswa ibe i-asidi ye-inorganic ester ne-organic acid ester.I-Etate, i-ethyl acetate i-ester enamafutha, i-acetate i-ester enamakha, futhi i-namanonate i-ester eyi-cyclic.
I-ester ngokuvamile iwuketshezi olungenambala olungathathi hlangothi.I-ester ekhiqizwe umjaho wamafutha kanye notshwala obugcwele inephunga lesithelo, elingancibilika emanzini, futhi kunzima futhi ukuncibilika emanzini.Enye iphoyinti elikhanyayo le-ester liphansi futhi livame ukusha.Umusi ungamuncwa umgudu wokuphefumula, futhi i-ester ewuketshezi ingamuncwa isikhumba.Ngemva kokumuncwa, iyancibilika ku-plasma, futhi ezinye zazo zikhishwa ngamaphaphu nezinso.Ngemuva kwe-hydrolysis ethile, phenduka ube yinqubo evamile ye-metabolic.Ngaphezu kwezinhlanganisela ezimbalwa ze-ester, eziningi zazo zinobuthi kakhulu futhi zinobuthi kakhulu, futhi eziningi zazo ziyi-micro-toxic kuya ezigabeni ezinobuthi obuphakathi, futhi eziningi zazo aziwona ubuthi.Kunama-ester angama-38 emaqenjini etiye.Ikakhulukazi: ① i-ester enamafutha: ekhiqizwa utshwala namafutha, njenge-ethyl acetate, i-hexyl hexyate.② I-ester enephunga elimnandi: ekhiqizwa utshwala ne-asidi enamakha, njenge-Shun-3-hexylzyl.③ I-Circin esters: ekhiqizwa utshwala ne-cyclocar, njenge-jasmone hyacxide.I-ester ngokuvamile ayithathi hlangothi, engenziwa i-hydrolyzed futhi ikhiqize utshwala ne-asidi.Izinombolo zekhabhoni ephansi ngokuvamile ziwuketshezi olunuka kamnandi, futhi izinombolo zekhabhoni ephezulu ziwuketshezi kanye nezinto eziqinile ezingancibiliki emanzini.

imikhiqizo ehlobene

L-Cys-OH I-HL-Cys-OMe.HCl (HL-Cys-OMe)2·2HCl (D-Cys-Ome)2.Hcl
I-Boc-L-Cys(Bzl) I-Fmoc-D-Cys(tBu)-OH I-Fmoc-D-Cys(Acm)-OH I-Fmoc-D-Cys(phacm)

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