73.下列何種第三代頭孢菌素(cephalosporins)之結構,於C-7具有ethylidinecarboxyl ?
(A)Cefdinir
(B)Ceftazidime
(C)Ceftibuten
(D)Ceftriaxone
答案:登入後查看
統計: A(837), B(1537), C(3222), D(1658), E(0) #1153529
統計: A(837), B(1537), C(3222), D(1658), E(0) #1153529
詳解 (共 10 筆)
#1431651
小補充:
◆第三代的C7都接有methoxyoxime,除了cefoperazone及cefibuten(C7改接ethylidinecarboxyl)
◆第三代的都帶有thiazole,除了cefoperazone
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#2915789
第三代Cephalosporins
| C7有methoxyoxime | thiazole | MTT | C3有側鏈 | |
| Cefoperazone | x | x | v | v |
| Ceftazidime | v | v | x | v |
| Ceftriaxone | v | v | x | v |
| Ceftizoxime | v | v | x | x |
| Ceftibuten | 改接ethylidinecarboxyl | v | x | x |
| Cefotaxime | v | v | x | v |
| Cefdinir | v | v | x | v |
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#1432682
問~~誰是口服:布丁口服
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#1423468
Cepha
3代注射:cefotaxime,ceftizoxime,ceftriaxone(前三個C7部分完全一樣),cefoperazone
3代注射:cefotaxime,ceftizoxime,ceftriaxone(前三個C7部分完全一樣),cefoperazone
3代口服(C7有接-COOH):cefixime,ceftibuten(C7-N上後連接雜環的鍊上唯一沒有N的)
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#3912489
補漏掉的
第三代Cephalosporins
| C7有methoxyoxime | thiazole | MTT | C3有側鏈 | |
| Cefoperazone | x(似Piperacillin不可抗酯) | x | v | v |
| Ceftazidime | v | v | x | v |
| Cefixime | v | v | x | v |
| Ceftriaxone | v | v | x | v |
| Ceftizoxime | v | v | x | x |
| Ceftibuten | 改接ethylidinecarboxyl | v | x | x |
| Cefotaxime | v | v | x | v |
| Cefdinir | v | v | x | v |
Cefpodoxime (prodrug) | v | v | x | v |
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#4149298
猜測下次考Ceftizoxime沒有C3沒有側練
或是cefaperazone沒有thiazole跟C7-methoxyoxime
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#1335663
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#5554097
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