Synthetic Route of 141452-01-9, A common heterocyclic compound, 141452-01-9, name is Methyl indoline-5-carboxylate, molecular formula is C10H11NO2, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc, below Introduce a new synthetic route.
(R)-methyl l-(8-cyclopentyl-7-ethyl-5-methyl-6-oxo-5,6,7,8-tetrahydropteridin-2- yl)indoline-5-carboxylate (i?)-2-chloro-8-cyclopentyl-7-ethyl-5-methyl-7,8-dihydropteridin-6(5H)-one (44.2 mg, 0.150 mmol, 1 eq), methyl indoline-5-carboxylate (31.9 mg, 0.180 mmol, 1.2 eq), Pd2dba3 (6.9 mg, 0.0075 mmol, 5 mol%), XPhos (10.7 mg, 0.0225 mmol, 15 mol%) and K2C03 (82.9 mg, 0.60 mmol, 4 eq) were dissolved in tBuOH (1.5 mL, 0.1 M) and heated to 100 C for 21 hours. The mixture was filtered through celite, washed with DCM and condensed. Purification by column chromatography (ISCO, 4 g silica column, 0-100% EtOAc/hexanes, 18 minute gradient) gave the desired product as a yellow oil (43.4 mg, 0.0997 mmol, 66%). 1H NMR (400 MHz, Chloroform-;/) delta 8.30 (d, J= 8.6 Hz, 1H), 7.89 (dd, J= 8.6, 1.8 Hz, 1H), 7.82 (d, J= 1.3 Hz, 1H), 7.76 (s, 1H), 4.47 (p, J= 8.5 Hz, 1H), 4.32 – 4.19 (m, 3H), 3.88 (s, 3H), 3.33 (s, 3H), 3.18 (t, J= 8.8 Hz, 2H), 2.21 – 2.11 (m, 1H), 2.04 – 1.98 (m, 1H), 1.86 (ddt, J= 16.3, 8.7, 4.4 Hz, 4H), 1.76 – 1.62 (m, 4H), 0.87 (t, J= 7.5 Hz, 3H). 13C NMR (100 MHz, cdcl3) delta 167.22, 163.83, 154.78, 152.04, 148.37, 137.77, 132.00, 130.05, 125.80, 121.94, 115.94, 113.23, 60.15, 58.76, 51.72, 49.52, 29.62, 29.18, 28.13, 27.07, 26.65, 23.36, 23.02, 9.17. LCMS 436.49.
The synthetic route of 141452-01-9 has been constantly updated, and we look forward to future research findings.
Reference:
Patent; DANA-FARBER CANCER INSTITUTE, INC.; BRADNER, James, E.; GRAY, Nathanael; QI, Jun; MCKEOWN, Michael, R.; BUCKLEY, Dennis; WO2015/117055; (2015); A1;,
Indoline – Wikipedia,
Indoline | C8H9N – PubChem