43.藥物碳數越多則其水溶解度越低,導入離子基團可抵消碳數對水溶解度之影響,通常一個離子基團約可抵消多少個碳原子之影響?
(A)6-9
(B)11-19
(C)21-29
(D)31-39

答案:登入後查看
統計: A(1023), B(808), C(1523), D(55), E(0) #416797

詳解 (共 4 筆)

#4909088

真的是沒水準的題目

30
1
#1420365
求解?
8
4
#3078122

大概就實驗值吧..


6
2
#6458468
Lemke estimates that each ionized functional group (cationic or anionic) found within a drug molecule contributes a solubilizing potential of 20-30 carbon atoms. Thus, the solubilizing potential for all of the functional groups in anileridine hydrochloride is 29-39 carbon atoms, which is more than the total number of carbon atoms in the molecule.
來源:Foye
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44.LogP=Σπ (fragments),其中P代表分配係數,π代表hydrophilic-lipophilic values。藥物分子每增加一個phenyl group,則π值增加多少?
(A) 0.5
(B) 1.0
(C) 1.5
(D) 2.0
 -104年 - 104-2 專技高考_藥師、藥師(一):藥理學與藥物化學#23933
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π value(越高越親脂)常用基團:
C, Cl, S : +0.5
COO, CON : -0.7
OH, NH : -1.0
phenyl : +2.0
來自前人詳解
3
0