Related Products of 955368-90-8, In the chemical reaction process,reaction time,type of solvent,can easily affect the result of the reaction, thereby determining the yield and properties of the reaction product.An updated downstream synthesis route of 955368-90-8 as follows.
General method for the preparation of pyridyl pyrazolopyrimidinones (9a-c). Nu,Nu’- Dimethylethylenediamine (4.47 mmol) was added to a solution of pyrazolopyrimidine 7 (2.25 mmol), bromopyridine (8a-c; 2.93 mmol), copper iodide (2.25 mmol) and K2C03 (3.1 5 mmol) in 1 ,4-dioxane (5 ml) at 80 C. The resultant suspension was heated at 95 C for 18 h, over which time a colour change of orange to dark green occurred. The reaction mixture was cooled to RT and diluted with NH40H (10 ml) before being extracted with EtOAc (2 x 20 ml). The combined organic extracts were washed with brine (20 ml), dried 33 (MgS04) and evaporated to dryness. The crude material was purified via silica gel chromatography (19:1 DCM:MeOH) to afford the target pyridyl pyrazolopyrimidinones (69-84%). 2-Allyl-1-(6-(2-hydroxypropan-2-yl)pyridin-2-yl)-6-(methylthio)-1,2-dihydro-3H- pyrazolo[3,4- d]pyrimidin-3-one (9a). Rf 0.63 (9:1 DCM:MeOH); M.p.108-111 C; IR (cm-1) 3337, 3081, 2966, 2924, 1663, 1601, 1559; 1H NMR(400 MHz, CDCI3) 1.61 (6H, s, C(CH3)2), 2.61 (3H, s, S-CH3), 3.77 (1H, s, -OH), 4.82 (2H, dapp, J = 5.9 Hz, N2-CH2), 4.95 (1H, dapp, J = 16.9 Hz, allyl C-Htrans), 5.08 (1H, dapp, J = 10.3 Hz, allyl C-Hcis), 5.72 (1H, dd = 16.9, 10.3, 5.9 Hz, allyl C-H), 7.42 (1H, d, J = 7.7 Hz, H-5′), 7.78 (1H, d,J = 8.0 Hz, H-3′), 7.93 (1H, dd,J = 8.0, 7.7 Hz, H-4′), 8.96 (1H, s, H-4); 13C NMR(125 MHz, CDCI3) 14.5 (SCH3), 30.5 (C(CH3)2), 47.5 (N2-CH2), 72.5 (C(CH3)2), 116.4 (Ar-C), 116.6 (Ar-C), 119.3 (allyl-CH2), 131.2, 139.2, 147.0 (Ar-C), 154.3 (Ar-C), 159.2 (C=0), 161.0 (Ar-C), 166.1 (Ar-C), 177.0 (Ar-C); MS [M + H]+ m/z 359.3.
These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route,955368-90-8, its application will become more common.
Reference:
Patent; THE REGENTS OF THE UNIVERSITY OF COLORADO, A BODY CORPORATE; REIGAN, Philip; MATHESON, Christopher; (71 pag.)WO2017/75629; (2017); A2;,
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