(R)-3-(N,N-Dimethyiamino)pyrrolidine derivatives of formula (I), wherein the meaning for Cy1 is as disclosed in the description. These compounds are useful as JAK3 kinase inhibitors.
Syntheses in the pyrido- and piperido-(1′ : 2′-1 : 2)benziminazole series
作者:K. H. Saunders
DOI:10.1039/jr9550003275
日期:——
Nishino et al., Kogyo Kagaku zasshi / Journal of the Society of Chemical Industry, 1959, vol. 62, p. 119,120
作者:Nishino et al.
DOI:——
日期:——
Heterocyclic syntheses. Part XXIII. Synthesis and reactions of 2,3-dihydrobenzimidazoles
作者:R. Garner、G. V. Garner、H. Suschitzky
DOI:10.1039/j39700000825
日期:——
1,2-Dialkyl-2,3-dihydrobenzimidazoles have been produced by reduction of the aromatic parent compounds with lithium aluminium hydride and also directly by cyclization of the appropriate nitrenes generated from azides or from nitro-compounds by deoxygenation with trialkyl phosphites. The factors influencing the stability of the title compounds have been studied.
Sodium dithionite in the regioselective reduction of the ortho-positioned nitro group in 1-R-2,4-dinitrobenzenes
作者:Michael D. Tsymliakov、Anita I. Maksutova、Elena N. Bezsonova、Daria V. Zakharova、Yuri K. Grishin、Victor A. Tafeenko、Sergey E. Sosonyuk、Natalia A. Lozinskaya
DOI:10.1016/j.mencom.2023.01.038
日期:2023.1
1-R-2,4-Dinitrobenzenes are regioselectively reduced with sodiumdithionite at near-neutral pH into the product having amino group ortho to the substituent R. Although the yields of products varied from moderate to good, the procedure does not involve the use of transition metals.