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andana

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[求助] 特立氟胺的CAS号 已有1人参与

请问各位CAS号108605-62-5和CAS号16345-81-8到底哪个是特立氟胺的CAS号啊?这两个结构式有什么区别呢?
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andana

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引用回帖:
3楼: Originally posted by mouse103 at 2017-03-03 13:33:27
Title: Teriflunomide
CAS Registry Number: 163451-81-8; 108605-62-5 (unspecified stereo)
CAS Name: (2Z)-2-Cyano-3-hydroxy-N--2-butenamide
Manufacturers' Codes: A-771726
Molecular Formula: C12H9F3N ...

您好,您发给我的这个是来自哪里?
4楼2017-03-03 13:45:01
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mouse103

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andana: 金币+5, ★★★★★最佳答案 2017-03-03 13:44:23
CAS:16345-81-8是,108605-62-5是顺反异构混合物的。
2楼2017-03-03 13:32:43
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mouse103

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Title: Teriflunomide
CAS Registry Number: 163451-81-8; 108605-62-5 (unspecified stereo)
CAS Name: (2Z)-2-Cyano-3-hydroxy-N-[4-(trifluoromethyl)phenyl]-2-butenamide
Manufacturers' Codes: A-771726
Molecular Formula: C12H9F3N2O2
Molecular Weight: 270.21
Percent Composition: C 53.34%, H 3.36%, F 21.09%, N 10.37%, O 11.84%
Literature References: Disease modifying antirheumatic drug (DMARD); active metabolite of leflunomide, q.v. Prepn: R. R. Bartlett, F.-J. Kämmerer, WO 9117748; eidem, US 5494911 (1991, 1996 both to Hoechst). Identification as active metabolite: J. W. Patterson et al., J. Med. Chem. 35, 507 (1992). Phamacokinetics: J. Lucien et al., Ther. Drug Monit. 17, 454 (1995). Inhibits dihydroorotate dehydrogenase: J. P. Davis et al., Biochemistry 35, 1270 (1996). Configurational study: G. Bertolini et al., J. Med. Chem. 40, 2011 (1997); and crystal structure: C. Papageorgiou et al., Bioorg. Chem. 25, 233 (1997). HPLC determn in plasma: V. Chan et al., J. Chromatogr. B 803, 331 (2004).
Therap-Cat: Immunomodulator; in treatment of multiple sclerosis.
Keywords: Immunomodulator.
3楼2017-03-03 13:33:27
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mouse103

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4楼: Originally posted by andana at 2017-03-03 13:45:01
您好,您发给我的这个是来自哪里?...

merck索引,或http://www.drugfuture.com/chemdata/Teriflunomide.html
5楼2017-03-03 15:32:22
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