Dab tsi yog cephalosporin intermediates rau tshuaj tua kab mob?
Cephalosporin intermediates yog cov tseem ceeb raw cov ntaub ntawv rau synthesizing cephalosporin antibacterial tshuaj thiab ua hauj lwm raws li ib tug tseem ceeb intermediate khoom txuas cov tshuaj feedstocks rau cephalosporin active tshuaj cov khoom xyaw (APIs).
Feem ntau ntawm cov intermediates no yog semi-synthetic compounds uas muaj ib tug -lactam nplhaib. Cov neeg sawv cev tseem ceeb suav nrog 7-Aminocephalosporanic acid (7-ACA) thiab 7-Aminodesacetoxycephalosporanic acid (7-ADCA), uas yuav tsum tau npaj los ntawm cov tshuaj sib xyaw ua ke lossis cov txheej txheem biotechnological fermentation. Lawv cov qauv kev hloov kho ncaj qha txiav txim siab txog cov tshuaj tiv thaiv kab mob, kev ua haujlwm, thiab kev ruaj ntseg ntawm cov khoom kawg, thiab lawv sawv cev rau cov kauj ruam tseem ceeb hauv kev ua kom zoo ntawm cephalosporins tiv thaiv kab mob Gram-positive thiab Gram-negative thiab txo cov tshuaj tiv thaiv.
Raws li ib qho tseem ceeb subfield ntawm kev lag luam tshuaj chemical, purity, yield, thiab zoo stability ntawm cephalosporin intermediates nruj me ntsis raws li thoob ntiaj teb pharmacopoeial qauv xws li USP thiab EP. Lawv tau siv dav hauv kev tsim cov tshuaj tua kab mob hauv chaw kho mob xws li cefazolin, cefuroxime, thiab ceftriaxone, ua rau lawv muaj kev sib txuas tseem ceeb hauv cov saw hlau uas ua kom cov khoom siv tshuaj tua kab mob.
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Kev faib tawm ntawm Cephalosporin Intermediates
1. 7-ACA Nucleus-Drived Intermediates
Synthesized ntawm sab- saw hloov kho siv 7-Aminocephalosporanic Acid (7-ACA) ua lub hauv paus nucleus: suav nrog: Cefdinir Intermediates (aminothiazole sab-cov saw hloov), Ceftobiprole Pivoxil Intermediates (pyrolidone sab- saw hloov kho), Ceftolozane Intermediates (oxazolidinone side-chain hloov kho), Ceftaroline Fosamil Intermediates (thiomorpholine side-chain hloov).
2. 7-ADCA Nucleus-Drived IntermediatesSiv
7-Amino-3-deacetoxycephalosporanic Acid (7-ADCA) ua lub hauv paus tseem ceeb, sib xws rau cov neeg nruab nrab rau thawj tiam cephalosporins (xws li Cefalexin, Cefradine).
3. GCLE Nucleus-Drived Intermediates
Siv GCLE (7-Phenylacetamido-}3-chloromethyl-4-cephalosporanic Acid p-Methoxybenzyl Ester) ua cov core nucleus, cov no yog cov precursor intermediates rau semi-synthetic cephalosporins thiab tuaj yeem hloov kho ntxiv rau hauv cov tshuaj intermediates rau ntau yam cephalosporin tshuaj.
Peb paub zoo-paub tias yog ib qho ntawm cov ua lag luam cephalosporin intermediates manufacturers thiab lwm tus neeg nyob hauv Suav teb. Peb lub Hoobkas muaj cov khoom zoo tshaj plaws cephalosporin intermediates ua nyob rau hauv Suav teb nrog cov nqi sib tw. Txais tos tiv tauj peb rau kev pabcuam lag luam wholesale.
