Cov tshuaj intermediates yog dab tsi?

Pharmaceutical intermediates, nyob rau hauv luv luv, yog tshuaj raw cov ntaub ntawv los yog chemical khoom siv nyob rau hauv cov tshuaj synthesis txheej txheem. Lawv yog cov khoom lag luam nrog cov khoom tshwj xeeb uas ua los ntawm cov tshuaj tiv thaiv ntawm ob lossis ntau dua cov khoom siv raw hauv qhov tsim nyog. Cov intermediates no zoo sib xws tab sis txawv hauv cov qauv tshuaj, xws li ethyl acetate thiab n-butyl propionate, methyl methacrylate thiab methyl acrylate, thiab lwm yam. Lawv tsis tsuas yog siv los tsim ntau hom tshuaj, tab sis kuj los kho ntau yam khoom ntawm cov tshuaj, xws li Raws li kev ruaj ntseg, solubility, thiab lwm yam. Ib qho tseem ceeb ntawm cov tshuaj intermediates yog tias txawm hais tias lawv ua lub luag haujlwm tseem ceeb hauv cov txheej txheem ntawm cov tshuaj, lawv tsis tas yuav muaj daim ntawv tso cai tsim khoom rau cov tshuaj. Qhov no txhais tau hais tias lawv tuaj yeem tsim tawm hauv cov nroj tsuag tshuaj zoo tib yam thiab, tsuav yog lawv ua tau raws li cov qauv zoo, tuaj yeem siv rau hauv kev sib xyaw ntawm cov tshuaj. Nws yog ib qho tsim nyog sau cia tias cov tshuaj intermediates feem ntau yog kim dua, uas cuam tshuam rau lawv cov txheej txheem ntau lawm thiab cov kev cai nruj. Tab sis nws yog qhov nyuaj thiab tshwj xeeb uas ua rau cov kws tshuaj intermediates tuav txoj haujlwm tseem ceeb hauv kev lag luam kws tshuaj. Tsis tas li ntawd, cov tshuaj intermediates kuj yog ib feem tseem ceeb ntawm Tuam Tshoj txoj kev lag luam kws tshuaj. Tom qab ntau xyoo ntawm txoj kev loj hlob, cov khoom siv raw khoom thiab cov khoom nruab nrab uas yuav tsum tau ua rau Tuam Tshoj cov chaw tsim tshuaj muaj qhov sib xyaw ua ke, thiab tsuas yog ib feem me me yuav tsum tau xa tuaj. Ntxiv mus, vim kuv lub teb chaws cov peev txheej ntau thiab cov khoom siv tsis tshua muaj nqi, ntau cov khoom nruab nrab tau raug xa tawm ntau ntau, yeej lub koob npe nrov thoob ntiaj teb rau kuv lub teb chaws kev lag luam tshuaj.

Feem ntau, cov tshuaj intermediates yog ib feem tseem ceeb ntawm kev lag luam kws tshuaj. Nrog rau lawv cov khoom siv tshuaj lom neeg tshwj xeeb thiab cov txheej txheem tsim khoom, lawv muab cov khoom siv hauv paus rau kev tsim cov tshuaj thiab tseem ua haujlwm tseem ceeb rau tib neeg kev noj qab haus huv. pab.