Technetium-99m and rhenium-188 complexes with one and two pendant bisphosphonate groups for imaging arterial calcification
作者:Jayanta Kumar Bordoloi、David Berry、Irfan Ullah Khan、Kavitha Sunassee、Rafael Torres Martin de Rosales、Catherine Shanahan、Philip J. Blower
DOI:10.1039/c4dt02965h
日期:——
The synthesis of the first technetium-99m and rhenium-188 complexes with two pendant bisphosphonate groups is described, along with their in vivo use in imaging the skeleton and arterial calcification.
S-methylation as a bioactivation mechanism for mono- and dithiocarbamate pesticides as aldehyde dehydrogenase inhibitors
作者:Richard E. Staub、Susan E. Sparks、Gary B. Quistad、John E. Casida
DOI:10.1021/tx00050a010
日期:1995.12
These soil fumigants are converted to S-methyl metam [MeNHC(S)SMe] which reaches peak levels in liver, kidney, brain, and blood 10-20 min after intraperitoneal (ip) treatment. The half-life of S-methyl metam administered ip is 8-12 min in each of these tissues. S-Methyl metam-oxon [MeNHC(O)SMe] is also detected as a metabolite of each of these soil fumigants on analysis by gaschromatography/mass spectrometry
作者:Sagun K. Tandel、Srinivasachari Rajappa、Sunil V. Pansare
DOI:10.1016/s0040-4020(01)87224-0
日期:1993.8
Treatment of methyl N-methylthionocarbamate (2a) with a catalytic amount of iodine or conc. H2SO4 results in the unexpected formation of the isomer, methyl N-methylthiolcarbamate (3a) in 90% yield. This has subsequently been transformed into methyl N-methylcarbamate (4a), by sodium methoxide. A curious transformation of methyl N-methyldithiocarbamate (1a) to (4a) on prolonged treatment with sodium
用催化量的碘或浓盐酸处理N-甲基硫代氨基甲酸甲酯(2a)。H 2 SO 4导致以90%的产率出乎意料地形成了异构体N-甲基硫醇氨基甲酸甲酯(3a)。随后通过甲醇钠将其转化为N-甲基氨基甲酸甲酯(4a)。还讨论了用甲醇钠长时间处理后甲基N-甲基二硫代氨基甲酸酯(1a)到(4a)的奇怪转变。
Imidazolyl alkyl bisamidines
申请人:Smith Kline & French Laboratories Limited
公开号:US04212875A1
公开(公告)日:1980-07-15
Bisamidines carrying one unsaturated nitrogen heterocycle-containing substituent, representative of which is 1-[N'-(2-(5-methyl-4-imidazolyl)methylthio)ethyl)guanidino]-8-[N'-methyl-g uanidino]octane, are histamine H.sub.2 -antagonists.