α-Imino Iridium Carbenes from Imidoyl Sulfoxonium Ylides: Application in the One-Step Synthesis of Indoles
作者:Clarice A. D. Caiuby、Matheus P. de Jesus、Antonio C. B. Burtoloso
DOI:10.1021/acs.joc.0c00833
日期:2020.6.5
Imidoyl sulfoxonium ylides are presented for the first time as potential precursors to generate α-imino metal-carbene intermediates and applied in direct C–H functionalization reactions catalyzed by [Ir(cod)Cl]2 (4 mol %) to provide 2-substituted indoles (up to 70% yield) in just one step. This class of sulfur ylide is successfully obtained from imidoyl chloride and dimethylsulfoxonium methylide (23
Chemistry and hypoglycemic activity of benzimidoylpyrazoles
作者:James R. Shroff、Victor Bandurco、Rohit Desai、Sidney Kobrin、Peter Cervoni
DOI:10.1021/jm00144a031
日期:1981.12
(tolazamide, phenformin, and buformin) in several experimental models show that these compounds seem to combine in one molecule some of the biological activities of the beta-cytotrophic sulfonylureas and some of the activities of the biguanides. A synthetic scheme for the preparation of the benzimidolypyrazoles and a preliminary structure-activity relationship are presented.
Prudchenko, A. P.; Drizhd, L. P.; Savelova, V. A., Journal of Organic Chemistry USSR (English Translation), 1986, p. 923 - 926
作者:Prudchenko, A. P.、Drizhd, L. P.、Savelova, V. A.
DOI:——
日期:——
Chemistry and hypoglycemic activity of N-[[(dialkylamino)alkoxy]phenyl]benzamidines
作者:James R. Shroff、Bill Elpern、Sidney Kobrin、Peter Cervoni
DOI:10.1021/jm00346a006
日期:1982.4
A series of N-[[(dialkylamino)alkoxyl]phenyl]benzamidines was synthesized and evaluated for hypoglycemic activity in the glucose-primed rat. Structure-activity relationship indicated that N'-phenyl-N-[4-[2(diisopropylamino)-ethoxy]phenyl]benzamidine dihydrobromide (7), N'-(4-chlorophenyl)-N-[4-[2-(diisopropylamino)ethoxy]phenyl]-benzamidine dihydrochloride (31), and N'-phenyl-N-[4-[(diisopropylamino)propoxy]phenyl]benzamidine dihydrobromide (11) are some of the more interesting compounds. A comparison of these hypoglycemic agents with classical standards (tolazamide, phenformin, and buformin) in several experimental models showed that the benzamidines seem to combine in one molecule some of the biological activities of the beta-cytotrophic sulfonylureas and some of the activities of the biguanides.