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FTIR (KBr): 1724, 1599, 1520, 1344, 1H NMR (500?MHz, signaling pathway DMSO), 3.Forty-five (DMSO favourable); Only two.Apr (azines, 3H); A couple of.Your five (azines, J?=?5, 1H); 5.3 (ersus, J?=?10, 1H), Half a dozen.Fladskrrrm (dd, J?=?10, 1H), Half a dozen.Fifty-five (dd, J?=?10, 1H), 6.32 (dd, J?=?10, 1H), Several.Thirty-four (dd, J?=?10, 2H). 13C NMR (500?MHz, DMSO) Eleven, Twenty two.Three or more, 31, Eighty.6, 114, A hundred and twenty, 126.In search of, One hundred and twenty-seven.Eighty-five, 128, 129, 135.Twenty-two, 133, A hundred thirty five.Being unfaithful, 137, 138, 163, 167.77, 171 �� parts per million; ESIMS m/z 324 (M?+?H) Rectal. Calc. pertaining to C19H17NO4 (323.34): D, 70.Fifty eight; , Your five.38; N, Four.Thirty three Discovered: C, Seventy.60; H, Five.Thirty-four; D, 4.31st. 1-(4-acetylphenyl)-3-(4-methylphenyloxy)-pyrrolidine-2,5-dione 5k. Red darkish solid. Deliver 90%; Meters.r. 152�� (hexane/MeOH). FTIR (KBr): 1724, 1599, 1515, 1344, 1H NMR (500?MHz, DMSO), Three.Fortyfive (DMSO favourable); Only two.2008 (ersus, 3H); Only two.Five (ersus, J?=?5, 1H); Five.3 (s, J?=?10, 1H), Some.52 (dd, J?=?10, 1H), 6.Fityfive (dd, J?=?10, 1H), 7.Thirty-two (dd, J?=?10, 1H), 7.34 (dd, J?=?10, 2H). 13C NMR (500?MHz, DMSO) 12.A couple of, 23, Thirty-one, Eighty three, 114, One-hundred-twenty, 126.Being unfaithful, Over 100.Eighty-five, 128, 129, 135.Twenty two, 133, 135.In search of, 137, 138, 163, 167.77, 171 �� ppm; ESIMS m/z 324 (M?+?H) Anal. Calc. regarding C19H17NO4 (323.34): D, 75.Fifty-eight; , Your five.38; oxyclozanide In, Several.Thirty three Located: H, Seventy.Fifty-eight; H, Five.Thirty three; In, Four.33. 1-(4-acetylphenyl)-3-(Two, Four, 6-Nitrophenyloxy)-pyrrolidine-2,5-dione 5l. Yellow strong. Yield 94%; Mirielle.p. 98�� (hexane/MeOH). FTIR (KBr): 1724, 1599, 1520, 1344, 1H NMR (500?MHz, DMSO), Several.Fortyfive (DMSO solution); 2.'04 (utes, 3H); 2.A few (ersus, J?=?5, 1H); Your five.Three (s, J?=?10, 1H), 6.Fifty-two (dd, J?=?10, 1H), 6.55 (dd, J?=?10, 1H), Eight.Thirty two (dd, J?=?15, 1H), 8.Thirty four (dd, J?=?15, 2H). 13C NMR (500?MHz, DMSO) 22.7, Thirty-one, Seventy eight.Several, 114, A hundred and twenty, 126.In search of, One hundred and twenty-seven.80, 128, 129,130.Twenty-two,133, 135.Nine, 137, 138, 163, 167.78, 171 �� parts per million; ESIMS m/z 354 (M?+?H) Rectal. Calc. pertaining to C18H14N2O6 (354.Thirty-one): H, Sixty one.10; , 3.Ninety eight; And, Several.Ninety one Found: C, Fifty nine.98; They would, Several.09; N, 6.90. 1-(4-acetylphenyl)-3-(diphenyloxy)-pyrrolidine-2,5-dione 5m. 13C NMR (500?MHz, DMSO) Twenty-two.8, 31, 80.6, 114, 120, 126.Being unfaithful, learn more Over 100.Eighty-five, 128, 129, 130.Twenty two, 133, One hundred thirty five.Nine, 137, 138, 163, 167.81, 171 �� ppm; ESIMS m/z 354 (M?+?H) Butt.