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·490· 精细化工 FINE CHEMICALS 第 36 卷
3-甲基-N-{[3-(6-吗啉吡啶-3-基)-4,5-2H-异 N-{[3-(6-吗啉吡啶-3-基)-4,5-2H-异唑-5-基]
唑-5-基]甲基}丁酰胺(Ⅸg):产率 61.3%,白色固体, 甲基}苯磺酰胺(Ⅸj):产率 55.4%,白色固体,m.p.
1
1
m.p. 160.7~162.2 ℃; HNMR (400 MHz, DMSO-d 6 ), 168.6~169.8 ℃; HNMR (400 MHz, DMSO-d 6 ), δ:
δ: 8.30 (d, J = 2.4 Hz, 1H), 8.03 (t, J = 5.6 Hz, 1H), 8.29 (d, J = 2.0 Hz, 1H), 7.96 (t, J = 6.4 Hz, 1H), 7.83
7.81 (dd, J = 8.8、2.4 Hz, 1H), 6.89 (d, J = 8.8 Hz, 1H), ~ 7.77 (m, 3H), 7.66 ~ 7.56 (m, 3H), 6.90 (d, J =
4.69 ~ 4.66 (m, 1H), 3.74 ~ 3.64 (m, 4H), 3.57 ~ 3.47 9.0 Hz, 1H), 4.70 ~ 4.63 (m, 1H), 3.73 ~ 3.63 (m, 4H),
(m, 4H), 3.40 ~ 3.36 (m, 1H), 3.30 ~ 3.17 (m, 2H), 3.58 ~ 3.48 (m, 4H), 3.44 ~ 3.37 (m, 1H), 3.18 ~ 3.12
13
3.10 ~ 3.04 (m, 1H), 1.96 ~ 1.90 (m, 2H), 1.93 ~ 1.86 (m, 3H); CNMR (100 MHz, DMSO-d 6 ), δ: 159.8,
13
(m, 1H), 0.85 ~ 0.81 (m, 6H); CNMR (100 MHz, 154.9, 146.9, 141.0, 135.6, 132.9, 129.7, 126.9, 115.1,
1
DMSO-d 6 ), δ: 172.5, 159.8, 154.9, 146.9, 135.6, 115.3, 107.2, 79.1, 66.3, 46.1, 45.2 ; IR (KBr), v/cm :
107.2, 79.4, 66.3, 45.1, 42.1, 37.7, 26.0, 22.7; IR 2927(—CH), 1608(C==N), 1504(C==C), 1332(—CH),
1
(KBr), v/cm : 3308(—NH), 2961(—CH), 1641(C==O),
1244(S==O), 1120(C—O);ES-MS, m/Z: 实测值(理论
1612(C==N), 1504(C==C), 1386 (—CH), 1112(C—O); 值): 403.1 (402.1) [M+H ]。
+
+
ES-MS,m/Z:实测值(理论值): 347.3 (346.2) [M+H ]。 1.2.4 目标化合物Ⅸk~l 合成
N-{[3-(6-吗啉吡啶-3-基)-4,5-2H-异唑-5-基] 合成方法参照文献[15]。冰水浴下,将化合物
甲基}四氢呋喃-2-甲酰胺(Ⅸh):产率 64.2%,白色 Ⅷ 262 mg (1.0 mmol),环己基异氰酸酯 250.4 mg
1
固体, m.p. 151.0~153.3 ℃; HNMR (400 MHz, (2.0 mmol)或 4-氯苯基异氰酸酯 307.6 mg (2.0 mmol),
DMSO-d 6 ), δ: 8.31 (d, J = 2.0 Hz, 1H), 7.91 (t, J = 6.0 三乙胺 0.21 mL (1.5 mmol)溶于 10 mL DMF 中,自
Hz, 1H), 7.82 (dd, J = 9.2、2.0 Hz, 1H), 6.90 (d, J = 然升至室温搅拌约 3~4 h,TLC〔V(DCM)∶V(MeOH)∶
9.2 Hz, 1H), 4.76 ~ 4.69 (m, 1H), 4.23 ~ 4.19 (m, 1H),
3.86 ~ 3.80 (m, 1H), 3.74 ~ 3.72 (m, 1H), 3.70 ~ 3.65 V(TEA) = 60∶1∶1〕监测反应完全,用乙酸乙酯萃
(m, 4H), 3.58 ~ 3.49 (m, 4H), 3.44 ~ 3.32 (m, 1H), 取(20 mL × 3),合并有机相,无水 Na 2 SO 4 干燥,减
3.30 ~ 3.07 (m, 3H), 2.17 ~ 1.96 (m, 1H), 1.90 ~ 1.58 压蒸干有机溶剂,重结晶得目标化合物。
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(m, 3H); CNMR (100 MHz, DMSO-d 6 ), δ: 173.5, 1-环己基-3-{[3-(6-吗啉吡啶-3-基)-4,5-2H-异
159.8, 154.8, 146.9, 135.6, 115.2, 107.2, 78.9, 78.1,
1
69.0, 66.3, 45.2, 41.9, 30.5, 25.3; IR (KBr), v/cm : 唑-5-基]甲基}脲(Ⅸk):产率 70.4%,白色固体,
1
3293(—NH), 2953(—CH), 1656(C==O), 1612(C==N), m.p. 187.0~187.8 ℃; HNMR (400 MHz, DMSO-d 6 ),
δ: 8.31 (d, J = 2.0 Hz, 1H), 7.82 (dd, J = 8.8、2.0 Hz,
1509(C==C), 1317(—CH), 1120(C—O); ES-MS,m/Z:
+
实测值(理论值): 361.3 (360.2) [M+H ]。 1H), 6.89 (d, J = 8.8 Hz, 1H), 5.91 (t, J = 6.0 Hz, 1H),
5.86 (d, J = 8.0 Hz, 1H), 4.68 ~ 4.61 (m, 1H), 3.70 ~
1.2.3 目标化合物Ⅸi~j 合成 3.68 (m, 4H), 3.54 ~ 3.51 (m, 4H), 3.40 ~ 3.33 (m,
合成方法参照文献[14]。冰水浴下,将化合物 2H), 3.21 ~ 3.19 (m, 2H), 3.10 ~ 3.05 (m, 1H), 1.73 ~
Ⅷ 262 mg (1.0 mmol),磺酰氯 1.05 mmol, DMAP 1.70 (m, 4H), 1.63 ~ 1.60 (m, 4H), 1.52 ~ 1.49 (m,
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2H); CNMR (100 MHz, DMSO-d 6 ), δ: 160.2, 157.9,
24.4 mg (0.2 mmol)和三乙胺 0.28 mL (2.0 mmol)溶
155.1, 146.9, 135.6, 115.2, 107.2, 80.2, 66.3, 48.1,
于 10 mL DMF 中,自然升至室温搅拌约 2 h,TLC 45.3, 42.9, 37.4, 33.7, 25.3; IR (KBr), v/cm : 3326
1
〔V(DCM)∶V(MeOH)∶V(TEA) = 60∶1∶1〕监测 ( — NH), 2931( — CH), 1627(C==O), 1578(C==N),
反应完全,用乙酸乙酯(EtOAc)萃取(20 mL × 3),合 1504(C==C), 1312(—CH), 1244(C—O);ES-MS, m/Z:
+
并有机相,无水 Na 2 SO 4 干燥,减压蒸干有机溶剂, 实测值(理论值): 388.3 (387.2) [M+H ]。
重结晶得目标化合物。 1-(4-氯苯基)-3-{[3-(6-吗啉吡啶-3-基)-4,5-2H-
N-{[3-(6-吗啉吡啶-3-基)-4,5-2H-异唑-5-基] 异唑-5-基]甲基}脲(Ⅸl):产率 75.7%,白色固体,
1
甲基}甲磺酰胺(Ⅸi):产率 47.2%,白色固体,m.p. m.p. 228.0~229.4 ℃; HNMR (400 MHz, DMSO-d 6 ),
1
180.4~181.4 ℃; HNMR (400 MHz, DMSO-d 6 ), δ: δ: 8.70 (s, 1H), 8.33 (d, J = 2.4 Hz, 1H), 7.83 (dd, J =
8.33 (d, J = 2.4 Hz, 1H), 7.83 (dd, J = 9.2、2.4 Hz, 1H), 9.2、2.4 Hz, 1H), 7.48 (d, J = 8.8 Hz, 1H), 7.40 (d, J =
7.28 (t, J = 6.4 Hz, 1H), 6.90 (d, J = 9.2 Hz, 1H), 4.76 8.8 Hz, 1H), 7.32 (d, J = 8.8 Hz, 1H), 7.25 (d, J =
~ 4.69 (m, 1H), 3.73 ~ 3.64 (m, 4H), 3.57 ~ 3.50 (m, 8.8 Hz, 1H), 6.89 (d, J = 9.2 Hz, 1H), 6.38 (t, J =
4H), 3.48 ~ 3.44 (m, 1H), 3.23 ~ 3.10 (m, 3H), 2.92 (s, 6.0 Hz, 1H), 4.78 ~ 4.70 (m, 1H), 3.69 ~ 3.67 (m, 4H),
13
3H); CNMR (100 MHz, DMSO-d 6 ), δ: 159.9, 155.0, 3.53 ~ 3.51 (m, 4H), 3.46 ~ 3.40 (m, 1H), 3.36 ~ 3.33
(m, 1H), 3.30 ~ 3.26 (m, 1H), 3.15 ~ 3.09 (m, 1H);
147.0, 135.7, 115.1, 107.2, 79.5, 66.3, 45.9, 45.2, 13 CNMR (100 MHz, DMSO-d 6 ), δ: 159.8, 155.7, 155.1,
1
37.6;IR (KBr), v/cm : 3281(—NH), 2981(—CH), 146.9, 139.8, 135.6, 129.0, 125.1, 119.6, 115.2, 107.2,
1
1612(C==N), 1505(C==C), 1384(—CH), 1241(S==O), 79.8, 66.3, 45.2, 42.7, 37.5; IR (KBr), v/cm : 3302(—
1114(C—O);ES-MS, m/Z: 实测值(理论值): 340.9 NH), 2968(—CH), 1651(C==O), 1610(C==N), 1511
+
(340.1) [M+H ]。 (C==C), 1315( — CH), 1246(C — F), 1116(C — O);