Odapipam
(Synonyms: 奥达匹泮,NNC 756) 目录号 : GC38405Odapipam (NNC 756) 是一种选择性,高亲和力的苯并氮杂卓多巴胺 D1 受体拮抗剂,Kd 为 0.18 nM。Odapipam 还是一种出色的正电子发射断层扫描 (PET) 放射性示踪剂。
Cas No.:131796-63-9
Sample solution is provided at 25 µL, 10mM.
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Odapipam (NNC 756) is a selective, high affinity and benzazepine dopamine D1 receptor antagonist with a Kd of 0.18 nM. Odapipam is also a superior positron emission tomography (PET) radiotracer[1][2].
The metabolism of Odapipam has been studied with phenobarbital-induced rat liver microsomes. During the incubation of Odapipam, five different metabolites are formed. The electron-ionization (EI+) mass spectra of the metabolites indicated the formation of N-desmethyl-Odapipam, 1-hydroxy-Odapipam, the two isomers of 3′-hydroxy-Odapipam and a metabolite which is dehydrogenated in the dihydrobenzofuran moiety[3].
[1]. Abi-Dargham A, et al. PET studies of binding competition between endogenous dopamine and the D1 radiotracer [11C]NNC 756. Synapse. 1999 May;32(2):93-109. [2]. Nielsen EB, et al. Dopamine receptor occupancy in vivo: behavioral correlates using NNC-112, NNC-687 and NNC-756, new selective dopamine D1 receptor antagonists. Eur J Pharmacol. 1992 Aug 14;219(1):35-44. [3]. J. VANGGAARD ANDERSEN, et al. Normal-phase liquid chromatography-particle-beam mass spectrometry in drug metabolism studies of the dopamine receptor antagonist Odapipam and the muscarine M1 receptor agonist Xanomeline. Xenobiotica. 1997, 27: 901-912.
Cas No. | 131796-63-9 | SDF | |
别名 | 奥达匹泮,NNC 756 | ||
Canonical SMILES | OC1=C(Cl)C=C2CCN(C)C[C@H](C3=C(OCC4)C4=CC=C3)C2=C1 | ||
分子式 | C19H20ClNO2 | 分子量 | 329.82 |
溶解度 | Soluble in DMSO | 储存条件 | Store at -20°C |
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1 mM | 3.032 mL | 15.1598 mL | 30.3196 mL |
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10 mM | 0.3032 mL | 1.516 mL | 3.032 mL |
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Normal-phase liquid chromatography-particle-beam mass spectrometry in drug metabolism studies of the dopamine receptor antagonist Odapipam and the muscarine M1 receptor agonist Xanomeline
Xenobiotica 1997 Sep;27(9):901-12.PMID:9381731DOI:10.1080/004982597240073.
1. The metabolism of Odapipam has been studied with phenobarbital-induced rat liver microsomes, followed by analysis with normal-phase hplc in combination with particle-beam mass spectrometry. 2. During the incubation of Odapipam, five different metabolites were formed. The EI+ mass spectra of the metabolites indicated the formation of N-desmethyl-Odapipam, 1-hydroxy-Odapipam, the two isomers of 3'-hydroxy-Odapipam and a metabolite which was dehydrogenated in the dihydrobenzofuran moiety. 3. The intrinsic hepatic extraction ratio and metabolism of Xanomeline has been studied in the perfused rat liver. Increasing the input concentration resulted in measurable concentrations of Xanomeline in the perfusate, although the extraction ratio was still > 0.9 at 140 microM. 4. Analysis of the perfusate by normal-phase hplc and particle-beam mass spectrometry showed the formation of at least six metabolites. The EI+ mass spectrum of the metabolites indicated the formation of omega-3 hydroxy-, omega-2 hydroxy-, omega-1 hydroxy-, omega-1 keto-Xanomeline in addition to omega-1 hydroxy-N-desmethyl-Xanomeline and an N-oxide of Xanomeline. 5. The results show that normal-phase hplc based on silica material is superior to reversed-phase-based systems in terms of selectivity. Furthermore, the use of non-aqueous solvents in combination with particle-beam mass spectrometry is advantageous compared with reversed-phase hplc since changing between different solvents in normal-phase hplc results only in minor changes in the particle-beam interface parameters such as nebulizer position, helium pressure and interface temperature.
Characterization of benzazepine UDP-glucuronosyl-transferases in laboratory animals and man
Xenobiotica 1995 Jun;25(6):611-22.PMID:7483661DOI:10.3109/00498259509061879.
1. The O-glucuronidation of two dopamine D1 receptor antagonists, Odapipam and Berupipam, were studied in hepatic microsomal fractions from mouse, rat, rabbit, dog, pig, and man using 14C-UDP-glucuronic acid. 2. The influence of pH, detergent, gender, drug-metabolizing enzyme inducers, and age were examined. Detergents like the zwitterionic CHAPS and non-ionic Tween 20, Triton X-100, and Brij 35 stimulated the glucuronidation rate by up to 600% of native activity with the latter being most effective. Both apparent Km and Vmax increased following detergent treatment in rat hepatic microsomes. Less marked activation of UDP glucuronosyltransferase activity was observed with Brij 35 in mouse, rabbit, dog, and pig compared with rat. In contrast, human hepatic microsomes were not stimulated by detergent treatment. 3. Marked species-dependent UDP-glucuronosyltransferase activity were observed for the two compounds. In general, Odapipam exhibited higher Vmax and Km compared with Berupipam with the exception of rabbit where the reverse was true. Similar kinetic parameters were, however, observed in human hepatic microsomes. Highest glucuronidation rate (in general) was observed in mouse followed by dog, pig, rabbit, man, and rat. 4. UGT activity in human livers showed up to a seven-fold variation. Conjugation of each compound were highly correlated (r = 0.92; n = 20) suggesting that identical isoform(s) were involved in this reaction. A significant age-related decrease in UDP-glucuronosyltranferase activity was observed, which partly could be explained by a preponderance in elderly female donor liver samples.