5381-20-4,5381-20-4, Thianaphthene-3-carboxaldehyde is a benzothiophene compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated
There was suspended, in ethanol (3.0 mL), 5-chloro-7-morpholin-4-yl-2-pyridin-4-yl-pyrazolo[1,5-a]pyrimidine (80 mg, 0.26 mM), then acetic acid (7.4 muL, 0.13 mM) and thianaphthene-2-carboxy-aldehyde (46 mg, 0.29 mM) were added to the suspension and the mixture was stirred at room temperature for one hour. This reaction liquid was filtered and the resulting solid was washed with ethanol and then with diethyl ether to thus give the title compound (3.4 mg, yield: 2.9%). 1H-NMR (300 MHz, DMSO-d6); delta 3.80 (bs, 4H), 3.94 (bs, 4H), 6.41 (s, 1H), 6.78 (s, 1H), 7.49 (t, 1H, J=6.9 Hz), 7.59 (t, 1H, J=6.9 Hz), 7.93 (d, 2H, J=6.3 Hz), 8.08 (d, 1H, J=7.8 Hz), 8.14 (s, 1H), 8.41 (s, 1H), 8.67 (d, 2H, J=6 Hz), 8.74 (d, 2H, J=7.8 Hz); MS (ESI) m/z 456 (M+H)+.
As the paragraph descriping shows that 5381-20-4 is playing an increasingly important role.
Reference：
Patent; AJINOMOTO CO., INC.; US2011/294781; (2011); A1;,
Benzothiophene – Wikipedia
Benzothiophene | C8H6S – PubChem