4771-49-7, 6-Methylindole-3-carboxyaldehyde is a indole-building-block compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated,4771-49-7
EXAMPLE 129 3-(6-Methylindol-3-yl)-2-[(2R),(3S)-2,3,4-trihydroxy-butylthio]-1-(3,4,5-trimethoxyphenyl)-2-propen-1-one (Compound 129) 3′,4′,5′-Trimethoxy-2-[(2R),(3S)-2,3,4-trihydroxy-butylthio]acetophenone (1.73 g) obtained in Reference Example 23 and 6-methylindole-3-carbaldehyde (0.80 g) were dissolved in ethanol (10 ml), and piperidine (0.43g) was added thereto, followed by heating under reflux for 48 hours. The reaction solution was concentrated under reduced pressure and the residue was purified by silica gel column chromatography. The obtained crude crystals were recrystallized from a mixed solvent of ethyl acetate and hexane to give Compound 129 (1.12 g). 1 H-NMR (270 MHz, CDCl3) delta2.43 (s, 3H), 2.95 (dd, J=13.6, 8.7 Hz, 1H), 3.10 (dd, J=13.6, 4.0 Hz, 1H), 3.17 (brs, 1H), 3.53 (d, J=6.3 Hz, 1H), 3.64-3.82 (m, 4H), 3.84 (s, 6H), 3.96 (s, 3H), 4.83 (d, J=4.0 Hz, 1H), 7.01 (d, J=8.2 Hz, 1H), 7.07 (s, 2H), 7.20 (s, 1H), 7.37 (d, J=8.2 Hz, 1H), 7.97 (s, 1H), 8.59 (d, J 2.6 Hz, 1H), 9.36 (brs, 1H) FAB-MS m/z=488 (M+ +1) Elemental Analysis: C25 H29 NO7 S Calcd.(percent): C, 61.59; H, 6.00; N, 2.87 Found (percent): C, 61.56; H, 6.14; N, 2.82
As the paragraph descriping shows that 4771-49-7 is playing an increasingly important role.
Reference£º
Patent; Kyowa Hakko Kogyo Co., Ltd.; US5952355; (1999); A;,
Indole alkaloid derivatives as building blocks of natural products from?Bacillus thuringiensis?and?Bacillus velezensis?and their antibacterial and antifungal activity study
Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles