Synthetic Route of 1943-79-9,Some common heterocyclic compound, 1943-79-9, name is Phenyl methylcarbamate, molecular formula is C8H9NO2, 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.
Phenyl N-methylcarbamate (350 mg, Production example 2-1) was added to a solution of 4-(3-methyl-1H-5-indolyl)oxy-2-pyridinamine (500 mg), sodium hydride (93 mg) and N,N-dimethylformamide (5 ml) at room temperature; and the reaction mixture was stirred for 2 hours and 45 minutes. Water was added to the reaction mixture; extraction was performed with ethyl acetate; and purification was performed by NH-silica gel column chromatography (Fuji Silysia, hexane: ethyl acetate = 1: 2, sequentially, ethyl acetate) to yield the title compound as a pale yellow amorphous solid (365 mg). 1H-NMR Spectrum (DMSO-d6) delta (ppm): 2.19 (3H, s), 2.80 (3H, d, J=4.0 Hz), 5.73 (1H, d, J=2.4 Hz), 5.83 (2H, s), 6.12 (1H, dd, J=5.6, 2.4 Hz), 7.00 (1H, dd, J=8.8, 2.4 Hz), 7.27 (1H, d, J= 2.4 Hz), 7.64 (1H, s), 7.75 (1H, d, J=5.6 Hz), 7.98 (1H, q, J=4.0 Hz), 8.24 (1H, d, J=8.8 Hz).
These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route Phenyl methylcarbamate, its application will become more common.
Reference:
Patent; Eisai Co., Ltd.; EP1522540; (2005); A1;,
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