| 查看: 943 | 回复: 7 | |||
| 当前主题已经存档。 | |||
[交流]
【求助】求替莫唑胺合成工艺
|
|||
| 谁有替莫唑胺的合成工艺啊? |
回复此楼» 猜你喜欢
锦州医科大学药用生物材料（专业代码1007Z1）招收调剂考生
已经有0人回复
-
锦州医科大学药用生物材料（专业代码1007Z1）招收调剂考生
已经有2人回复
-
药理学论文润色/翻译怎么收费?
已经有81人回复
-
26申博自荐
已经有12人回复
-
SUES&NERCN课题组接受硕士生调剂 (学硕1名+专硕1名)
已经有0人回复
-
SUES&NERCN课题组接受硕士生调剂 (学硕1名+专硕1名)
已经有0人回复
-
SUES&NERCN课题组接受硕士生调剂 (学硕1名+专硕1名)
已经有0人回复
-
求大佬收留
已经有0人回复
-
NSCLC脑转移肿瘤模型
已经有0人回复
-
CHP-134这个细胞系哪里有？
已经有0人回复
nkbeholder
木虫 (正式写手)
- DRDEPI: 1
- 应助: 11 (小学生)
- 金币: 2945.1
- 散金: 4
- 红花: 5
- 帖子: 748
- 在线: 303.7小时
- 虫号: 202353
- 注册: 2006-03-01
- 性别: GG
- 专业: 药物化学
2楼2009-08-25 13:58:50
3楼2009-08-25 14:03:53
stred
至尊木虫 (文坛精英)
蓝翔技校优秀毕业生
- 应助: 54 (初中生)
- 贵宾: 0.367
- 金币: 35270.1
- 散金: 126
- 红花: 26
- 帖子: 11514
- 在线: 250.5小时
- 虫号: 319944
- 注册: 2007-03-09
- 性别: GG
- 专业: 有机合成
4楼2009-08-26 02:19:31
5楼2009-09-09 08:33:49
mayanstude
铜虫 (小有名气)
- 应助: 0 (幼儿园)
- 金币: 43.4
- 散金: 82
- 帖子: 195
- 在线: 33.3小时
- 虫号: 821736
- 注册: 2009-08-04
- 性别: GG
- 专业: 药物分析
|
参考文献No. 2177 标题: Tetrazine derivs., process for their preparation and pharmaceutical compsns. containing them 作者: Lunt, E.; Stevens, M.F.G.; Stone, R.; Woolbridge, K.R.H. (Cancer Research Campaign Technology Ltd.) 来源: BE 894175; DE 3231255; FR 2511679; GB 2104522; JP 1983043975; US 5260291 合成路线图解说明: By cyclization of 5-diazoimidazole-4-carboxamide (I) with 2-chloroethyl isocyanate (II) in dichloromethane. 合成路线图解说明: By reaction of 5-diazoimidazole-4-carboxamide (II), prepared by diazotization of 5-aminoimidazole-4-carboxamide (I) with nitrous acid, with methylisocyanate (III) either alone or in dichloromethane. 参考文献No. 262695 标题: Temozolomide 作者: Prous, J.; Casta馿r, J.; Graul, A. 来源: Drugs Fut 1994,19(8),746 合成路线图解说明: By reaction of 5-diazoimidazole-4-carboxamide (II), prepared by diazotization of 5-aminoimidazole-4-carboxamide (I) with nitrous acid, with methylisocyanate (III) either alone or in dichloromethane. 参考文献No. 265060 标题: Antitumor imidazotetrazinones. 1. Synthesis and chemistry of 8-carbamoyl-3-(2-chloroethyl)imidazo[5,1-d]-1,2,3,5-tetrazin-4(3H)-one, a novel broad-spectrum antitumor agent 作者: Stone, R.; Newton, C.G.; Gibson, N.W.; Baig, G.U.; Lunt, E.; Stevens, M.F.G.; Hickman, J.A. 来源: J Med Chem 1984,27(196-201),196 合成路线图解说明: By cyclization of 5-diazoimidazole-4-carboxamide (I) with 2-chloroethyl isocyanate (II) in dichloromethane. 合成路线图解说明: By reaction of 5-diazoimidazole-4-carboxamide (II), prepared by diazotization of 5-aminoimidazole-4-carboxamide (I) with nitrous acid, with methylisocyanate (III) either alone or in dichloromethane. 参考文献No. 296954 标题: Antitumour imidazotetrazines. 31. The synthesis of isotopically labelled temozolomide and a multinuclear (H-1, C-13, N-15) magnetic resonance investigation of temozolomide and mitozolomide 作者: Wilman, D.E.V.; Thomson, W.; Wheelhouse, R.T.; Stevens, M.F.G. 来源: J Chem Soc - Perkins Trans I 1995,3(3),249 合成路线图解说明: The synthesis of several forms of [13C]- and [15N]-labeled temozolomide has been reported: 1) The diazotation of 3-aminopyrazole-4-carboxamide (I) with [15N]-labeled sodium nitrite and HCl gives the corresponding labeled diazonium salt (II), which is cyclized with methyl isocyanate (II) at room temperature, yielding temozolomide labeled at the N in the 2-position. 合成路线图解说明: 2) The condensation of N,N-diphenylcarbamoyl chloride (IV) with [13C]-labeled methylamine (V) gives the corresponding urea (VI), which by heating at 240 C is converted to the [13C]-labeled methyl isocyanate (VII). Finally, this compound is cyclized with the diazonium salt (VIII) (obtained by diazotation of 3-aminopyrazole-4-carbonitrile with NaNO2-HCl in the usual way) to afford temozolomide labeled at the methyl in the 3-position. 3) The preceding sequence performed with [15N]-labeled methylamine (X) gives urea (XI), isocyanate (XII) and finally temozolomide labeled at the N in the 3-position. 参考文献No. 695689 标题: A new synthesis of temozolomide 作者: Wanner, M.J.; Koomen, G.J. 来源: J Chem Soc - Perkins Trans I 2002,(16),1877 合成路线图解说明: Further nitration of the nitroimidazole (I) with HNO3, Ac2O gives the 1,4-dinitroimidazole (II), which is treated with KCN and NaHCO3 in methanol/water to yield 5-nitro-1H-imidazole-4-carbonitrile (III). The reaction of (III) with dihydropyran and Ts-OH in ethyl acetate affords the N-protected imidazole (IV). The reduction of (IV) with H2 over Pt/C in ethyl acetate provides the hydroxylamine (V), which is oxidized with NaIO4 in ethyl acetate/water to give the nitroso derivative (VI). The condensation of (VI) with phenyl 2-methylcarbazate (VII) by means of HOAc and TFA yields the triazene (VIII), which is treated with conc. HCL in ethyl acetate to afford the carboxamide (IX). Finally, this compound is cyclized to the target imidazo-tetrazinone by irradiation with daylight in acetone/MeOH, most probably through the non isolated cis intermediate (X). 参考文献No. 707355 标题: Antitumor imidazotetrazines. 40.(1) Radiosyntheses of [4-11C-carbonyl]- and 3-N-11C-methyl]-8-carbamoyl-3- methylimidazo[5,1-d]-1,2,3,5-tetrazin-4(3H)-one (temozolomide) for positron emission tomography (PET) studies 作者: Brown, G.D.; Luthra, S.K.; Brock, C.S.; Stevens, M.F.G.; Price, P.M.; Brady, F. 来源: J Med Chem 2002,45(25),5448 合成路线图解说明: This compound has been obtained by two related ways: 1. The reaction of 5-diazoimidazole (I) with methylamine gives the triazene (II), which is then cyclized with 11C-phosgene (III) to yield the target 11C-carbonyl labeled compound. 2. The cyclization of 5-diazoimidazole-4-carboxamide (I) with 11C-carbonyl labeled methyl isocyanate (IV) gives the target 11C carbonyl labeled compound. 合成路线图解说明: The cyclization of 5-diazoimidazole-4-carboxamide (I) with 11C-methyl isocyanate (II) gives the target 11C methyl labelled compound. 参考文献No. 801773 标题: Triazines and related products, part 22. Synthesis and reactions of imidazo[5,1-c][1,2,4]triazines. J Chem Soc Perkin Trans I 作者: Stevens, M.F.G.; Baig, G.U. 来源: J Chem Soc - Perkins Trans I 1981,1424 合成路线图解说明: By reaction of 5-diazoimidazole-4-carboxamide (II), prepared by diazotization of 5-aminoimidazole-4-carboxamide (I) with nitrous acid, with methylisocyanate (III) either alone or in dichloromethane. |
6楼2009-09-10 10:31:50
mayanstude
铜虫 (小有名气)
- 应助: 0 (幼儿园)
- 金币: 43.4
- 散金: 82
- 帖子: 195
- 在线: 33.3小时
- 虫号: 821736
- 注册: 2009-08-04
- 性别: GG
- 专业: 药物分析
★
karl2100(金币+1,VIP+0):多谢提供！ 9-11 00:24
karl2100(金币+1,VIP+0):多谢提供！ 9-11 00:24
|
发错了 你看这个网址吧，不好意思 http://www.drugfuture.com/synth/syndata.aspx?ID=108485 |
7楼2009-09-10 10:32:45
canwor
银虫 (正式写手)
- 应助: 0 (幼儿园)
- 金币: 334.9
- 帖子: 422
- 在线: 2.9小时
- 虫号: 721332
- 注册: 2009-03-12
- 性别: GG
- 专业: 材料化学/医药合成
8楼2009-09-10 21:27:25
