生物活性 (Z)-10-羟基诺替利定是诺替利定的代谢产物,而诺替利定是一种三环类抗抑郁药,也是氨替比林的主要活性代谢物,用于缓解抑郁症状。
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | (Z)-10-Hydroxyamitriptyline | 64520-05-4 | C20H23NO | 293.409 |
—— | (5Z)-5-(3-Bromopropylidene)-5,11-dihydro-10H-dibenzo[a,d]cyclohepten-10-ol | 156458-91-2 | C18H17BrO | 329.236 |
去甲替林 | 3-(10,11-dihydro-5H-dibenzo[a,d]cyclohepten-5-ylidene)-N-methyl-1-propanamine | 72-69-5 | C19H21N | 263.382 |
阿米替林 | Amitriptyline | 50-48-6 | C20H23N | 277.409 |
—— | (Z)-N-methyl-3-(10,11-dihydro-10-oxo-5H-dibenzocycloheptene)-Δ5,γ-propylamine | 37440-22-5 | C19H19NO | 277.366 |
—— | N,Ndimethyl-3-(10,11-dihydro-10-oxo-5H-dibenzo[a,d]cycloheptene)-Δ5,γ-propylamine | 37401-47-1 | C20H21NO | 291.393 |
(5Z)-5,11-二氢-5-(3-羟基丙亚基)-10H-二苯并[a,d]环庚烯-10-酮 | 5-(γ-hydroxypropylidene)-(10,11-dihydro-10-oxo-5H-dibenzo)-cycloheptene | 156458-89-8 | C18H16O2 | 264.324 |
(5Z)-5-(3-溴亚丙基)-5,11-二氢-10H-二苯并[a,d]环庚烯-10-酮 | (Z)-5-γ-bromopropylidene-10,11-dihydro-10-oxo-5H-dibenzocycloheptene | 156458-92-3 | C18H15BrO | 327.22 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | (Z)-N-methyl-3-(10,11-dihydro-10-oxo-5H-dibenzocycloheptene)-Δ5,γ-propylamine | 37440-22-5 | C19H19NO | 277.366 |
Kinetic analysis of the metabolism of amitriptyline and nortriptyline using liver microsomes from Wistar rats showed that more than one enzyme was involved in each reaction except for monophasic amitriptyline N-demethylation. The Vmax values particularly in the high-affinity sites for E-10-hydroxylation of both drugs were larger than those for Z-10-hydroxylations. Their E- and Z-10-hydroxylase activities in Dark-Agouti rats, which are deficient for CYP2D1, were significantly lower than those in Wistar rats at a lower substrate concentration (5 μM). The strain difference was reduced at a higher substrate concentration (500 μM). A similar but a smaller strain difference was also observed in nortriptyline N-demethylase activity, and a pronounced sex difference (male > female) was observed in N-demethylation of both drugs in Wistar and Dark-Agouti rats. The reactions with the strain difference were inhibited concentration-dependently by sparteine, a substrate of the CYP2D subfamily, and an antibody against a CYP2D isoenzyme. The profiles of these decreased metabolic activities corresponded to that of the lower metabolic activities in Dark-Agouti rats.
These results indicated that a cytochrome P450 isozyme in the CYP2D subfamily was involved in E- and Z- 10-hydroxylations of amitriptyline and nortriptyline in rat liver microsomes as a major isozyme in a low substrate concentration range. It seems likely that the CYP2D enzyme contributes to nortriptyline N-demethylation.