Semaglutide impurities

Semaglutide Impurities|Simeglutide Impurity Control|Impurity Custom Synthesis thiab Structure Confirmation|Kev tshawb fawb-Peptide

Soma Lutide (Simeglutide) impurity tswj - rau GLP-1 kev tshawb fawb txog tshuaj zoo, kev xa tshuaj generic.Science-Peptide muab kev cai synthesis ntawm Soma Lutide ntsig txog impurities, suav nrog peptides ploj, oxidized impurities, fatty acid exfoliation khoom, PEG-chain, thiab lwm yam. cov ntaub ntawv lees paub. Peb tuaj yeem pab txhawb koj qhov kev tshawb fawb txog impurity profile. Txais tos tiv tauj peb.

Semaglutide (tseem hu ua Semaglutide) tau hluav taws kub xyoo no. Novo Nordisk tso siab rau nws los thawb tus nqi lag luam rau lub ntiaj teb thib ob, cov tuam txhab tsim khoom ntawm peptide generics, yuav luag tsis saib nws. Daim ntawv qhia qhov ncauj thiab daim ntawv txhaj tshuaj yog txhua lub khw loj. Tom qab tas sij hawm ntawm patent, leej twg tuaj yeem ua thawj qhov kev tshawb fawb zoo, leej twg yuav muaj lub sijhawm los tuav thawj generic.

 

Txawm li cas los xij, kev kawm zoo ntawm somatostatin yog, hais ncaj ncees, nyuaj dua li ntawm ntau peptides. Nws yog 31-peptide nrog cov roj ntsha fatty acid (octadecanedioic acid) thiab PEG txuas. Cov qauv no txiav txim siab nws cov impurity spectrum tshwj xeeb yog nplua nuj - peptides uas ploj lawm, oxidized impurities, fatty acid shedding khoom, PEG saw impurities, dimers txhua tus yuav tsum muaj kev tswj, txhua tus yuav tsum tau meej. Tshwj xeeb tshaj yog cov saw hlau PEG, uas tsis pom nyob rau hauv cov peptides zoo tib yam, yog tshwj xeeb rau Somalutide.

 

Peb tau sau ntau qhov kev paub dhau los hauv kev sib xyaw ntawm cov peptide impurities complex. Peb tau tshwj xeeb hauv kev tshawb fawb ntawm somatostatin, thiab peb paub tias dab tsi yog qhov teeb meem ntawm nws cov impurity profile thiab dab tsi yog cov khoom tseem ceeb tswj. Peb tuaj yeem hloov kho cov kev sib txuas ntawm ntau yam Semaglutide Impurities tswj raws li koj xav tau, nrog cov ntaub ntawv pov thawj ntawm cov qauv, thiab pab koj tsim cov txheej txheem, yog li koj yuav tsis tshua muaj kev tshaj tawm ntxiv thaum ua ntawv.

Cov qauv molecular ntawm somatostatin txiav txim siab tias nws cov impurity profile yog qhov nyuaj dua li cov peptides zoo tib yam. Thaum peb ua cov kev tshawb fawb impurity, peb feem ntau tsom rau cov pawg no:

Peptide ploj lawm
Lub 31 amino acids, ib qho ntawm ib qho uas tsis tuaj thaum lub sij hawm tsim cov txheej txheem, yog ib qho impurity. Lub sijhawm khaws cia ntawm peptides uas ploj lawm ntawm HPLC tau nthuav dav, nrog cov polarity sib txawv ntawm cov peptides uas ploj lawm hauv ntau txoj haujlwm. Qee qhov ploj lawm ntawm N-terminus, qee qhov ntawm nruab nrab, thiab qee qhov ze ntawm qhov chaw fatty acid txuas. Peb tau txais ib qho kev txiav txim los ntawm tus neeg muas zaub uas nug rau ib lub kaum os los yog li ntawd ploj lawm peptides nyob rau hauv ntau txoj hauj lwm los nrhiav tau tag nrho cov uas ploj lawm impurities nyob rau hauv lawv cov txheej txheem.

Oxidizing impurities
Somalutide muaj methionine (Met) nyob rau hauv nws cov kab ke, uas yog raug rau oxidation rau sulfoxide thiab ces rau sulfone. Oxidized impurities feem ntau tshwm sim hauv kev tshawb fawb kev ruaj ntseg thiab loj hlob tom qab lub sijhawm. Peb tau ua qhov sib piv, nyob rau hauv cov xwm txheej ceev rau ib hlis, oxidation ncov tuaj yeem loj hlob mus rau ntau dua 0.3%, tsis muaj kev tswj hwm.

Fatty acid shedding cov khoom
Lub fatty acid sab saw (octadecanedioic acid) ntawm somatostatin yog txuas rau lysine los ntawm ib tug linker, thiab qhov kev hloov kho no tej zaum yuav yog ib feem los thaum synthesis los yog cia. Qhov teeb meem ntau dua, qhov tso tawm tuaj yeem tshwm sim ntawm qhov chaw sib txawv - nruab nrab ntawm fatty acid thiab linker, thiab nruab nrab ntawm cov linker thiab peptide - ua rau cov impurities sib txawv. Peb tau tsim ntau cov roj fatty acid-txog impurities rau peb cov neeg siv khoom, xws li los ntawm kev ua tiav los ntawm ib qho me me.

PEG saw-txog impurities
Qhov no yog hom impurity tshaj plaws hauv somatostatin. Nws muaj PEG (polyethylene glycol) txuas, thiab cov saw hlau PEG tuaj yeem tawg, luv luv, lossis polymerize thaum lub sijhawm sib txuas, ua rau muaj kev cuam tshuam ntawm impurities. Cov impurities no tsis pom muaj nyob rau hauv cov peptides zoo tib yam, tab sis yog tshwj xeeb rau somatostatin, thiab nyuaj rau kev kawm hauv kev tshawb fawb zoo. Peb tau ua ntau yam sib txawv ntawm PEG saw deletion, PEG saw shortening, thiab PEG saw oxidation.

Dimers/polymers
Ob lossis ntau dua somatostatin molecules pawg ua ke los ua ib qho dimer lossis siab dua. Qhov hnyav molecular ntawm lub dimer yog ob npaug ntawm lub ntsiab ncov, thiab feem ntau nws yog qhov dav dav ntawm HPLC, yog li nws yuav tsum tau muab cais tshwj xeeb thiab ua kom huv si ua ntej nws tuaj yeem siv los tswj. Peb tau ua tiav qhov kev npaj ntawm dimers, thiab nws tau siv ntau qhov kev ua kom huv huv kom ua tiav qhov purity ntau dua 95%.

Deamidated impurities
Asparagine (Asn) thiab glutamine (Gln) tau yooj yim deamidated nyob rau hauv acidic los yog cua sov tej yam kev mob, ua rau isomers. Muaj ob peb Asn thiab Gln nyob rau hauv ib theem ntawm somatostatin, thiab lub deamidation impurity feem ntau tshwm nyob rau hauv yuam degradation test, yog li cov khoom tswj yuav tsum tau siv los nrhiav cov impurity.

Diastereoisomers
Thaum lub sij hawm ntev saw synthesis, ib tug neeg amino acids yuav undergo racemization, ua rau diastereoisomers. Cov ntsiab lus ntawm hom impurity no feem ntau tsis siab, tab sis cov kws tshaj lij yuav nug thaum tshaj tawm, thiab nws yog qhov zoo dua kom muaj cov khoom tswj kom paub meej.

Ntau yam ntawm cov impurities no tsis tuaj yeem yuav thiab yuav tsum tau ua raws li kev cai. Peb twb tau ua ntau txoj haujlwm ntawm kev hloov kho ntawm somatostatin impurities, npog tag nrho cov pawg saum toj no.

Kev tshem tawm ntawm peptide series
We synthesize whatever is missing. For example, the lysine at position 20 is missing, or the amino acid near the fatty acid attachment site is missing. We will synthesize according to your process impurity profile, and the purity is usually >95%, nrog MS thiab NMR kev pom zoo. Peb tau tsim cov peptides nrog 5 amino acid sib nrug los ntawm N-terminal mus rau C-terminal.

Oxidizing impurities
Met in Somatostatin is oxidized to sulfoxide or sulfone, and we can control the oxidation conditions and synthesize the oxidized control product. We can control the oxidation conditions and synthesize the oxidized control product. The purity of the product is >95%, thiab peb tuaj yeem muab LC-MS spectrum kom paub meej tias qib oxidation. Sulfoxide thiab sulfone raug cais los ntawm HPLC, thiab peb tuaj yeem ua ob qho tib si.

Fatty acid shedding cov khoom
Qhov no yog qhov tseem ceeb ntawm Somalutide impurities. Cov kab mob fatty acid tuaj yeem raug tshem tawm tag nrho lossis ib nrab tshem tawm. Peb tuaj yeem sib xyaw ua ke ntawm ntau qhov sib txawv rau ntau txoj haujlwm ntawm kev poob. Nyob rau hauv ib qho ntawm cov haujlwm nyuaj tshaj plaws uas peb tau ua tiav, tus neeg siv khoom tau hais kom peb ua kom muaj qhov tsis huv nrog 6 carbons uas ploj lawm los ntawm cov roj ntsha fatty acid, thiab nws tau siv ob lub hlis kom tau txais nws txoj cai.

PEG saw-txog impurities
Qhov no yog ib qho nyuaj tshaj plaws impurities ntawm somatostatin, thiab nws kuj yog peb lub zog. PEG saw tej zaum yuav ploj lawm, luv luv, tawg, oxidized, thiab ntau yam sib txawv yuav raug tsim. Peb tau ua qhov impurity nrog PEG saw tag lawm (ie de-PEGylated somatostatin), qhov sib txawv nrog PEG saw ntev halved, thiab cov khoom nrog PEG saw oxidized. Tus neeg siv khoom tau txais cov kev tswj hwm no, thiab cov spectrum ntawm PEG-txog impurity tau tsim tiav.

Dimer
Dimers tsim los ntawm tus ntoo khaub lig-txuas los yog tsis yog-covalent kev sib cuam tshuam tuaj yeem npaj tau los ntawm ntau txoj hauv kev thiab cais tawm thiab ua kom huv huv los muab kev tswj hwm purity siab. Dimers muaj zog heev los ntxuav, tab sis peb muaj kev paub paub yuav ua li cas cais cov monomers.

Deamidated impurities
Rau qhov chaw Asn thiab Gln nyob rau hauv ib theem zuj zus, peb tuaj yeem npaj deamidated impurity tswj los ntawm kev quab yuam degradation los yog tsom synthesis. Qhov sib txawv ntawm qhov hnyav ntawm molecular tom qab deamidation tsuas yog 1, uas tsis yooj yim rau qhov txawv ntawm MS, yog li peb feem ntau siv NMR lossis tshwj xeeb chromatographic mob kom paub meej.

Dther customized impurities
Yog tias koj pom qhov tsis paub tsis meej tshiab hauv koj qhov kev tshawb fawb, peb tuaj yeem pab koj txheeb xyuas cov qauv thiab sib txuas nws. Xa peb cov qauv, peb yuav ua LC-MS tsom xam, kwv yees cov qauv, tom qab ntawd kev sib txuas lus, thiab tom qab ntawd sib piv lub sijhawm khaws cia thiab huab hwm coj ntau kom paub meej tias qhov kev pom zoo. Peb tau ua cov txheej txheem no ntau zaus thiab qhov kev vam meej yog siab heev.

analytical method development thiab validation
Thaum teeb tsa HPLC lossis LC-MS txoj kev, yuav tsum muaj kev tswj hwm qhov tsis huv rau hauv cheeb tsam, kev txiav txim siab ntawm kev sib cais, kev txheeb xyuas cov kab ntau thiab rov qab. Yog tsis muaj kev tswj, txoj kev validation yog ploj lawm ib daim. Ntau tus neeg muas zaub hais kom peb ua ob peb qhov tseem ceeb impurities ua ntej los teeb tsa txoj kev, thiab tom qab ntawd maj mam ua qhov seem.

Heterogeneous pawg spectrometry
Thaum cov tshuaj generic tau tshaj tawm, yuav tsum tau ua kom tiav cov txiaj ntsig zoo thiab kev soj ntsuam ntau ntawm cov txheej txheem impurities thiab degradation khoom. Qhov chaw, cov ntsiab lus thiab cov qauv ntawm txhua qhov impurity yuav tsum tau lees paub los ntawm kev tswj cov khoom. Peb tau pom daim ntawv tshaj tawm ntawm cov ntaub ntawv raug xa mus ua, cuaj zaug ntawm kaum yog cov impurities ntawm daim no tsis nkag siab.

Kev tshawb fawb txog kev ruaj ntseg
Nyob rau hauv lub sij hawm ntev - kev ruaj ntseg thiab ceev cov kev ntsuam xyuas, nws yog ib qho tsim nyog los txiav txim siab seb cov khoom degradation twg yog qhov tseem ceeb thiab qhov sib txawv ntawm cov ntsiab lus yog dab tsi. Nrog rau kev tswj impurity, nws muaj peev xwm ua kom muaj nuj nqis thiab saib xyuas. Ib tus neeg siv khoom tau ua qhov kev ruaj ntseg ntawm kev npaj somatostatin, thiab pom tias qhov degradation ncov loj hlob sai heev nyob rau hauv cov xwm txheej ceev, yog li peb tau soj ntsuam nws los ntawm MS thiab ua ke kom paub meej tias cov qauv, thiab tom qab ntawd cov neeg siv khoom muaj kev cia siab los qhia nws.

Batch tso tawm xeem
Tom qab kev lag luam, txhua pawg ntawm API lossis cov qauv yuav tsum tau kuaj xyuas cov khoom hauv nqe lus nug. Kev tswj hwm impurity yog cov cuab yeej tseem ceeb rau kev sim tso tawm.

Cov ntaub ntawv hais txog cov ntawv tshaj tawm tshuaj generic
Kev tshawb fawb impurity yog ib feem tseem ceeb ntawm cov ntaub ntawv ua ntaub ntawv. Muab tag nrho impurity profileing thiab tswj cov ntaub ntawv ua rau txo qis kev pheej hmoo ntawm kev tshuaj xyuas kev tso tawm.

Case 1: Lub tuam txhab kws tshuaj, Somalutide generic drug program
Lawv tab tom tsim ib qho kev hloov pauv ntawm somatostatin thiab xav tau cov txheej txheem ntawm impurity tswj rau txoj kev siv tau. Peb kho 15 impurities rau lawv: 6 peptides ploj, 2 oxidized impurities, 1 dimer, 2 fatty acid exfoliation khoom, 3 PEG saw impurities, thiab 1 deamidation impurity. Qhov purity ntawm txhua tus yog siab dua 95%, nrog MS thiab NMR cov ntaub ntawv. Tus thawj tswj haujlwm tau hais tias, "Cov impurities ntawm Somalutide yog qhov nyuaj dua li lwm cov peptides, tshwj xeeb tshaj yog PEG ib qho, uas peb tau nrhiav ntau lub tuam txhab, tab sis lawv txhua tus hais tias lawv ua tsis tau. Tab sis koj muaj peev xwm ua tau tag nrho, thiab cov ntaub ntawv tiav, uas yog ib qho kev pab zoo." Tom qab ntawd, qhov kev lees paub ntawm lawv txoj kev tau ua tiav tiav, thiab tam sim no lawv tab tom npaj ua ntaub ntawv.

Case 2: A CRO, kev kawm tshwj xeeb ntawm impurities hauv PEG saw
Lawv tau ua tiav txoj haujlwm tshawb fawb zoo ntawm somatostatin, uas yuav tsum muaj kev tshuaj xyuas dav dav ntawm cov impurities cuam tshuam nrog PEG saw. Peb muab cov txheej txheem sib xyaw ua ke ntawm PEG-txog impurities: ua tiav qhov tsis muaj PEG saw, ib nrab ntawm PEG saw ntev, oxidation ntawm PEG saw xaus, thiab tawg ntawm PEG saw ua ob ntu. synthesized tag nrho ntawm 8 PEG-txog impurities. Tus neeg siv khoom siv cov kev tswj hwm no los tsim kom tiav cov txheej txheem PEG impurity nrhiav kom tau, uas tau los ua qhov tseem ceeb ntawm lawv cov ntaub ntawv.

Case 3: Stability Study, ib lub tuam txhab biotechnology
Lawv tau ua kev tshawb fawb txog kev ruaj ntseg ntawm somatostatin formulation thiab pom tias cov ntsiab lus ntawm cov khoom degradation tau nce sai heev hauv cov xwm txheej ceev, tab sis lawv tsis paub tias nws yog dab tsi. Peb tau soj ntsuam tus qauv los ntawm LC-MS, xav tias nws yog cov roj fatty acid tso tawm impurity ntawm ib qho chaw, thiab tom qab ntawd muab cov khoom sib xyaw ua ke thiab pom zoo los ntawm kev sib piv. Lawv tau tsim ib qho kev ntsuam xyuas siv qhov kev tswj hwm no, thiab tau soj ntsuam xyuas qhov sib txawv ntawm cov khoom degradation no. Tom qab ntawd, thaum xa daim ntawv tshaj tawm, qhov no ntawm cov ntaub ntawv tau hais txog los ntawm cov kws tshaj lij, thiab vim yog cov ntaub ntawv ruaj khov, tsis muaj nyiaj them poob haujlwm.

Somatostatin yog ib yam khoom nrov heev, tab sis kev kawm impurity yog ib txoj hauj lwm me me, tshwj xeeb tshaj yog PEG saw impurities thiab fatty acid exfoliation khoom, uas ntau lub tuam txhab ua tsis tau. Yog tias koj tab tom ua kev tshawb fawb zoo lossis kev txhim kho dav dav ntawm somatostatin, thiab xav tau kev tswj hwm impurity, txais tos tham nrog peb. Peb tau ua hauj lwm ntau heev, peb paub tias dab tsi yog qhov nyuaj, thiab peb paub yuav ua li cas kom nws tawm.