Aladdin-oxazoline-ampicillin
Difluoropropene
Trioxime-statine-petriazine
Four generations of Pim rode horses.
Five generations of Lorraine Tollop
The first generation: Aladdin, Lin Anpising
Cefradine, cefazolin, cefalexin, cefadroxil
The second generation: desflumet, gram propylene
Cefuroxime, Cefmondo, Ceftidine, Cefurol, Cefpropene
The third generation: trimetazidine and pethidine.
Cefotaxime, Cefotaxime, Cefotaxime, Ceftazidime, Ceftriaxone.
The fourth generation: the fourth generation of pyridoxime, riding a horse.
Cefpirome; cefpirome
Fifth Generation: Lorraine and Turop in the Five Dynasties.
Cefololin, Cefotoro, Cefopiride
Cephalosporins are a series of semi-synthetic antibiotics obtained by modifying the side chain of cephalosporin C isolated from Cephalosporium coronatum culture medium.
Its advantages are wide antibacterial spectrum and high efficiency for anaerobic bacteria; The allergic reaction caused by penicillin is lower than that caused by penicillin. Stable to acids and β -lactamases produced by various bacteria; The mechanism of action, like penicillin, is to achieve the purpose of sterilization by inhibiting the formation of bacterial cell walls.
Belonging to a bactericide in the breeding period. Because of its low adverse reactions and toxic side effects, it is a kind of antibiotics that is developing rapidly at present.
Cephalosporins and penicillins belong to β -lactam antibiotics. The difference is that the mother nucleus of cephalosporin is 7- aminocephalosporanic acid (7-ACA), while the mother nucleus of penicillin is 6- aminopenicillanic acid. This structural difference makes cephalosporins resistant to penicillinase.
References:
Cephalosporin Baidu Encyclopedia Cephalosporin Baidu Encyclopedia