28506-01-6Relevant articles and documents
Development of selective inhibitors for the treatment of rheumatoid arthritis: (R)-3-(3-(Methyl(7H-pyrrolo[2,3-d]pyrimidin-4-yl)amino)pyrrolidin-1-yl)-3-oxopropanenitrile as a JAK1-selective inhibitor
Chough, Chieyeon,Joung, Misuk,Lee, Sunmin,Lee, Jaemin,Kim, Jong Hoon,Kim, B. Moon
, p. 1495 - 1510 (2018/02/19)
A series of 3(R)-aminopyrrolidine derivatives were designed and synthesized for JAK1-selective inhibitors through the modification of tofacitinib's core structure, (3R,4R)-3-amino-4-methylpiperidine. From the new core structures, we selected (R)-N-methyl-N-(pyrrolidin-3-yl)-7H-pyrrolo[2,3-d]pyrimidin-4-amine as a scaffold for further SAR studies. From biochemical enzyme assays and liver microsomal stability tests, (R)-3-(3-(methyl(7H-pyrrolo[2,3-d]pyrimidin-4-yl)amino)pyrrolidin-1-yl)-3-oxopropanenitrile (6) was chosen for further in vivo test through oral administration. Compound 6 showed improved selectivity for JAK1 compared to that of tofacitinib (IC50 11, 2.4 × 102, 2.8 × 103, and 1.1 × 102 nM for JAK1, JAK2, JAK3, and TYK2, respectively). In CIA and AIA model tests, compound 6 exhibited similar efficacy to tofacitinib citrate.
Influence of ring size on the cognition-enhancing activity of DM235 and MN19, two potent nootropic drugs
Guandalini,Martini,Di Cesare Mannelli,Dei,Manetti,Scapecchi,Teodori,Ghelardini,Romanelli
supporting information; experimental part, p. 1936 - 1939 (2012/04/04)
A series of analogs of DM235 and MN19, characterized by rings with different size, have been prepared and evaluated for their nootropic activity in the mouse passive-avoidance test. It was found that the optimal ring size for the analogs of DM235, showing endocyclic both amidic groups, is 6 or 7 atoms. For the compounds structurally related to MN19, carrying an exocyclic amide group, the piperidine ring is the moiety which gives the most interesting compounds.
An efficient conversion of chiral α-amino acids to enantiomerically pure 3-amino cyclic amines
Moon, Sung-Hwan,Lee, Sujin
, p. 3919 - 3926 (2007/10/03)
Enantiomerically pure 3-amino cyclic amines such as 3-amino pyrrolidine, 3-amino piperidine, and 2,3,4,5,6,7-hexahydro-1H-azepine have been synthesized in high yields from the optically active natural α-amino acids such as L-aspartic acid, L-glutamic acid, L-2-aminoadipic acid, and their enantiomers.
