Ukusetyenziswa kweSodium Cyanide kwi-Pharmaceutical and Organic Synthesis

intshayelelo

I-Sodium cyanide (NaCN), ikhompawundi engaphiliyo, nangona inetyhefu eninzi, idlala indima ebalulekileyo kwiinkqubo ezahlukeneyo zoshishino kunye neekhemikhali. Eli nqaku liza kujonga ukusetyenziswa kwayo kwi-pharmaceutical and Organic synthesis , ligxininisa ukubaluleka kwayo kunye neempendulo ebandakanyeka kuzo.

Izicelo kwi-Pharmaceutical Synthesis

Ukudityaniswa kweziyobisi eziqhelekileyo

1. IPenicillin

Iikhompawundi zeCyanide, kuquka iSodium cyanide , zibandakanyeka ekwenziweni kwezinye izinto ezizandulela ipenicillin. Kwinkqubo eyinkimbinkimbi ye-penicillin enezinyathelo ezininzi, iimpendulo ezithile zifuna ukungeniswa kwamaqela athile asebenzayo. I-Sodium cyanide ingasetyenziselwa ukwazisa iqela le-cyanide (-CN) kwiikhompawundi eziphambili eziphakathi. Eli qela le-cyanide linokuguqulwa ngakumbi nge-hydrolysis, ukunciphisa, okanye ezinye iimpendulo zeekhemikhali ukuze zenze izakhiwo zeemolekyuli ezifunekayo kumsebenzi we-antibacterial we-penicillin.

2. Vitamin B6

Ukwenziwa kwevithamini B6 kukwasebenzisa iSodium Cyanide kwezinye iindlela zokwenziwa. Iqela le-cyanide eliveliswa yi- sodium cyanide linokuthatha inxaxheba kwiimpendulo zokwenza i-ring kunye nokuguqulwa kwamaqela asebenzayo. Umzekelo, lingasetyenziselwa ukwakha isakhiwo se-pyridine ring esiphawuleka kwivithamini B6. Ngoluhlu lweempendulo ezifana nokongeza kwe-nucleophilic kunye neempendulo zokukhupha, i-cyanide equlathe i-intermediate inokuguqulwa kancinci kancinci ibe yimveliso yokugqibela yevithamini B6 nge-stereochemistry echanekileyo kunye nolungiselelo lweqela olusebenzayo.

3. Ifolic acid

Kwi-synthesis ye-folic acid, i-sodium cyanide ingasetyenziselwa ukuhlanganiswa kweeyunithi zayo ezincinci. I-Folic acid ineringi ye-pteridine, i-para-aminobenzoic acid, kunye ne-glutamic acid moieties. Isodium cyanide inokubandakanyeka kwiintshukumo ezenza okanye zilungise izakhiwo zezi yunithi zincinci. Umzekelo, ekudityanisweni kweringi ye-pteridine, i-cyanide-based reactions inokusetyenziselwa ukwazisa i-nitrogen-equlethe amaqela asebenzayo, abaluleke kakhulu kubume kunye nomsebenzi webhayoloji we-folic acid.

4. Caffeine

I-caffeine synthesis inokubandakanya i-sodium cyanide kwiindlela ezithile zokwenziwa. Ulwakhiwo lwe-methylxanthine lwe-caffeine lunokwakhiwa ngoluhlu lweempendulo eziqala kwi-precursors elula. I-sodium cyanide inokuthatha inxaxheba kwiimpendulo ezizisa amaqela asebenzayo kwiindawo ezithile kwizakhiwo zeringi, ezithi ke zihlanjululwe nge-methylated kwaye ziqhubekele phambili ukwenza i-caffeine. Amaqela asebenzayo e-cyanide anokusebenza njengeebhloko zokwakha ezibalulekileyo zokwakha i-molecule ye-caffeine.

I-Synthesis of Pharmaceutical Intermediates

1. IiAmino Acids kuMachiza

Ii-amino acids zisisiseko sokwakha iimveliso ezininzi zamayeza. I-sodium cyanide isetyenziselwa ukuhlanganiswa kwee-amino acids ezithile. Ngokomzekelo, kwi-Strecker synthesis, i-aldehyde okanye i-ketone ithatha i-ammonia kunye ne-sodium cyanide ukwenza i-α - amino nitrile. Le α - i-amino nitrile inokuthi emva koko i-hydrolyzed ukwenza i-amino acid ehambelanayo. Le ndlela yokusabela ibonelela ngendlela eguquguqukayo yokudityaniswa kwee-amino acid ezingezizo ezendalo nezendalo ezisetyenziswa kuphuhliso lwamachiza, nokuba zizithako ezisebenzayo zamayeza (APIs) ngokwazo okanye njengeziphakathi ezibalulekileyo kwiimolekyuli zamachiza ezintsonkothileyo.

2. AbaPhakathi baMachiza okulwa nomhlaza

Ekuphuhlisweni kweziyobisi ze-anticancer, i-sodium cyanide ingasetyenziselwa ukuhlanganiswa kwezinto ezidibeneyo. Amanye amachiza okulwa nomhlaza anezakhiwo ezintsonkothileyo zemolekyuli ezifuna ukuqaliswa kwamaqela e-nitrile kwiindawo ezichanekileyo. I-sodium cyanide ingasetyenziselwa ukwazisa la maqela e-nitrile, anokuthi emva koko aguqulwe ngakumbi abe ngamanye amaqela asebenzayo afana ne-amides, i-carboxylic acids, okanye i-amines ngokusebenzisa ii-chemical reactions ezisekelwe kakuhle. La maqela asebenzayo abalulekile kwintsebenziswano yechiza kunye neemolekyuli ekujoliswe kuzo kwiiseli zomhlaza, ezinjengee-enzymes okanye ii-receptors ezibandakanyekayo ekukhuleni kweeseli kunye nokwanda.

Usetyenziso kwi-Organic Synthesis

Intshayelelo yeCyanide Groups

1. I-Nitrile Synthesis

I-sodium cyanide yinto eqhelekileyo yokudibanisa i-nitriles. Kwi-organic chemistry, xa i-alkyl halide isabela nge-sodium cyanide kwi-polar aprotic solvent njenge-dimethyl sulfoxide (DMSO) okanye i-dimethylformamide (DMF), impendulo ilandela ukutshintshwa kwe-nucleophilic bimolecular mechanism. Njengomzekelo, i-ethyl bromide isabela kunye ne-sodium cyanide kwi-DMSO ukwenza i-ethyl cyanide, eyaziwa ngokuba yi-propionitrile. I-Nitriles ziphakathi eziguquguqukayo kakhulu kwi-organic synthesis. Ziyakwazi ukuguqulwa zibe yi-carboxylic acids nge-hydrolysis, zincitshiswe ukuba zenze ii-amine eziphambili, okanye zisetyenziswe kwi-synthesis ye-heterocyclic compounds.

2. I-Aromatic Nitrile Synthesis

Isodium cyanide ingasetyenziswa ekudityanisweni kwe nitriles enamakha. Iimpendulo phakathi kwe-aryl halides kunye ne-sodium cyanide zinzima kakhulu xa zithelekiswa nezo zine-alkyl halides ngenxa ye-reactivity ephantsi ye-aryl halides. Nangona kunjalo, phantsi kweemeko ezithile, ezifana nokusebenzisa i-catalyst yobhedu kwinto eyaziwa ngokuba yi-Rosenmund - von Braun reaction, i-aryl nitriles inokuveliswa. Umzekelo, i-bromobenzene inokusabela nge-sodium cyanide phambi kobhedu (I) cyanide kwi-DMF ukwenza i-benzonitrile.

Ukudityaniswa kweeMolekyu eziNxibelele zeOrganic

1. I-Synthesis ye-Heterocyclic Compounds

I-Sodium cyanide idla ngokuthatha inxaxheba ekuhlanganisweni kwee-heterocyclic compounds, ezifumaneka kakhulu kwiimveliso zendalo, amayeza, kunye nezinto. Ekuhlanganisweni kwee-pyrimidines, udidi lwee-heterocyclic compounds ezinemisebenzi ebalulekileyo yebhayoloji, i-sodium cyanide inokubandakanyeka kwiimpendulo ezakha isakhiwo se-pyrimidine ring. Enye yeenkqubo ezinjalo kuxa i-1,3 - di Carbon yl compound isabela kunye ne-urea kunye ne-sodium cyanide phantsi kweemeko ezisisiseko. Iqela le-cyanide lifakwa kwi-reaction intermediate, kwaye ngochungechunge lwee-cyclization kunye ne-elimination reactions, i-pyrimidine ring yenziwa.

2. I-Synthesis yeMveliso yeNdalo - njengeeMolekyuli

Kwi-synthesis yeamolekyu eziyinkimbinkimbi ezifana nemveliso yendalo, i-sodium cyanide ingasetyenziselwa kumanyathelo abalulekileyo ukwazisa amaqela asebenzayo okanye ukudala i-carbon-carbon bonds. Ngokomzekelo, kwi-synthesis epheleleyo ye-alkaloids, i-sodium cyanide ingaqeshwa ukwazisa iqela le-nitrile kwindawo ethile ngaphakathi kwe-molecule. Eli qela le-nitrile linokuthi lisetyenziswe kwiimpendulo ezifana ne-Grignard - uhlobo lwe-reactions ukwenza i-carbon entsha - ibhondi ye-carbon okanye iguqulwe ngakumbi ibe ngamanye amaqela asebenzayo, okuvumela ukuba ulwakhiwo lwamanyathelo ngamanyathelo okwakhiwa kwemveliso yendalo eyinkimbinkimbi.

Iingqwalaselo zoKhuseleko

Kufuneka kugxininiswe ukuba i-sodium cyanide inetyhefu kakhulu. Iyakwazi ukukhulula i-cyanide ions kwisisombululo, esinokuthi sibophe kwi-iron (III) kwi-cytochrome c oxidase kwiiseli, inqanda ukuphefumla kweselula kwaye ikhokelela ekufeni ngokukhawuleza kweeseli. Ngoko ke, nakwesiphi na isicelo esibandakanya i-sodium cyanide, iiprothokholi eziqinileyo zokhuseleko kufuneka zilandelwe. Oku kuquka ukuphatha imisi evuthela umoya kakuhle, ukunxiba izixhobo ezifanelekileyo zokuzikhusela ezifana neeglavu, iiglasi, nempahla yokukhusela, nokuba nezicwangciso ezifanelekileyo zokusabela kwimeko kaxakeka xa kukho ukuchitheka okanye ukuvezwa. Ukongezelela, inkunkuma equkethe i-sodium cyanide kufuneka iphathwe ngokufanelekileyo ukukhusela ukungcoliswa kwendalo.

isiphelo

I-sodium cyanide, nangona i-toxicity ephezulu, i-reagent ebalulekileyo kwi-pharmaceutical and organic synthesis. Ivumela ukuhlanganiswa koluhlu olubanzi lwamachiza, i-pharmaceutical intermediates, kunye ne-molecule eyinkimbinkimbi yezinto eziphilayo. Ngokuqonda izicelo zayo kunye nokulandela iinkqubo ezingqongqo zokhuseleko, iikhemisti zinokuqhubeka nokusebenzisa i-sodium cyanide ukuphuhlisa amachiza amatsha, izixhobo kunye nezinye iimveliso zekhemikhali ezixabisekileyo. Nangona kunjalo, iinzame ziyenziwa ukuphuhlisa ezinye iindlela, iindlela ezinetyhefu encinci kwiimpendulo ngoku ezixhomekeke kwi-sodium cyanide ukunciphisa ubungozi obunxulumeneyo.