Synthetic Route of 18615-86-6 ,Some common heterocyclic compound, 18615-86-6, molecular formula is C6H7NO, 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.
Step 1 4-(2-((3R,4aR,6aS,7R,10bR)-3-cyclopentyl-6a,10b-dimethyl-8-dihydromethylene decahydro-1H-naphtho[2,1-d][1,3]dioxin-7-yl)ethoxy)-2-methylpyridine 2-Methylpyridin-4-ol (60 mg, 0.55 mmol) was dissolved in anhydrous N,N-dimethylformamide (10 mL), and potassium carbonate (75.5 mg, 0.55 mmol) and (3R,4aR,6aS,7R,10bR)-7-(2-bromoethyl)-3-cyclopentyl-6a,10b-dimethyl-8-methylenedecahydro-1H-naphtho[2,1-d][1,3]dioxin (150 mg, 0.37 mmol) were successively added to the reaction solution and stirred overnight at 60 C. The reaction solution was cooled and extracted with dichloromethane (30 mL). The organic layer was washed with water (10 mL*3), dried over anhydrous sodium sulfate, filtered, and the filtrate was concentrated under reduced pressure and then separated by column chromatography to give 4-(2-((3R,4aR,6aS,7R,10bR)-3-cyclopentyl-6a,10b-dimethyl-8-dihydromethylene decahydro-1H-naphtho[2,1-d][1,3]dioxin-7-yl)ethoxy)-2-methylpyridine 319 (80 mg, yield: 50%). MS m/z (ESI): 440.8 [M+1] 1H NMR (400 MHz, CDCl3) 8.31 (d, J=6.0 Hz, 1H), 6.67-6.64 (m, 1H), 4.91 (s, 1H), 4.63-4.60 (m, 2H), 4.10-3.88 (m, 3H), 3.53-3.45 (m, 2H), 2.54 (s, 3H), 2.46-1.56 (m, 18H), 1.55 (s, 3H), 1.39-1.27 (m, 3H), 0.81 (s, 3H).
These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route,18615-86-6, its application will become more common.
Reference:
Patent; Heilongjiang Zhenbaodao Pharmaceutical Co., Ltd.; MEDSHINE DISCOVERY INC.; HE, Haiying; JIANG, Zhigan; XIA, Jianhua; WANG, Jing; HAN, Lixia; LAN, Lihong; ZHOU, Hui; LAI, Kunmin; CHEN, Shuhui; US2018/346438; (2018); A1;,
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