4318-42-7, 1-Isopropylpiperazine is a piperazines compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated
To a solution of Compound 46-4 (8E,12E,14E)-6-(1-ethoxyethoxy)-6,10,12,16,20-pentamethyl-7-(4-nitrophenoxy)carboxy-3,16,21-tris(triethylsiloxy)-18,19-epoxytricosa-8,12,14-trien-11-olide (1.27 g, 1.16 mmol) obtained in the fourth step of Example 46 in tetrahydrofuran (25 mL) were added triethylamine (470 mg, 4.64 mmol) and isopropylpiperazine (298 mg, 2.32 mmol) at room temperature, and the reaction mixture was stirred at the same temperature for 1.5 hours. The reaction mixture was diluted with ethyl acetate and then washed with a saturated aqueous solution of sodium bicarbonate and brine. The organic layer was dried over anhydrous magnesium sulfate, filtrated and concentrated. The resulting residue was purified by silica gel column chromatography (Kanto silica gel 60N, 40 to 100 mum; hexane:ethyl acetate=1:1 to ethyl acetate to ethyl acetate_methanol=97:3) to give the title compound (1.12 g, 89percent) as a colorless oil.1H-NMR Spectrum (CD3OD,400MHz) delta(ppm): 0.58-0.70 (27H,m), 0.80-1.72(53H,m),1.76(3H,s),1.88-1.98(1H,m),2.33-2.64(8H,m), 2.64-2.76(1H,m),2.80-2.90(1H,m),3.38-3.66(6H,m),3.68-3.78 (1H,m),3.85-3.98(1H,m),4.88-4.99(2H,m),5.05(0.4H,q,J=5.2Hz), 5.13(0.6H,q,J=5.2Hz),5.57(1H,dd,J=10.0,15.2Hz),5.72-5.80 (1H,m),5.82(1H,d,J=14.8Hz),6.13(1H,d,J=10.8Hz),6.50(1H,dd, J=10.8,15.2Hz)., 4318-42-7
As the paragraph descriping shows that 4318-42-7 is playing an increasingly important role.
Reference£º
Patent; MERCIAN CORPORATION; Eisai Co., Ltd.; EP1508570; (2005); A1;,
Piperazine – Wikipedia
Piperazines – an overview | ScienceDirect Topics