Page 237 - 《精细化工》2023年第2期
P. 237
第 2 期 赵传武,等: 喹啉多环系列化合物的一锅法合成 ·459·
系在 90 ℃下搅拌 2 h。TLC〔展开剂:V(二氯甲烷)∶ 115.12, 113.23, 106.01 (d, J = 25.5 Hz), 104.73,
V(甲醇)=10∶1〕监测无 4-氯-5,7-二氟喹啉-3-甲酸乙 102.73, 99.08 (d, J = 25.5 Hz), 64.20, 55.61, 14.30;
酯剩余,停止加热,冷却降至室温,向反应液中加 HRMS(ESI) , m/Z : 理论值 C 18 H 14 FN 3 O 2
+
入水 100 mL 和乙酸乙酯 50 mL,萃取有机相,有机 [M+H] 324.1143,实测值 324.1149。
相减压浓缩,粗品经柱层析分离〔洗脱剂:V(二氯 5,9-二氟-12H-苯并[2,3][1,4]氧杂氮杂环庚并
甲烷)∶V(甲醇)=20∶1〕得到目标产物Ⅲa,收率为 [5,6,7-de]喹啉-1-甲酸乙酯(Ⅲd):淡黄色固体,
1
83.7%。其余产物的制备方法同上,只需改变化合物 55 mg,收率为 80.3%,HPLC 纯度 98.79%; HNMR
Ⅰ和Ⅱ(Ⅱ的化学式中,Y 可以为 O、S 或 NH,R 2 (600 MHz, CDCl 3 ), δ:11.585 (s, 1H), 9.161 (s, 1H),
7.439 (d, J = 8.4 Hz, 1H), 7.022~7.060 (m, 3H),
可以为苯环衍生物、吡啶衍生物、脂肪环或脂肪链)
6.888~6.899 (m, 1H), 4.476 (q, J = 7.2 Hz, 2H), 1.475
的种类,其余产物收率为 56.3%~97.1%。所有目标 (t, J = 7.2 Hz, 3H); CNMR (150 MHz, CDCl 3 ), δ:
13
1
产物的结 构 经核磁共 振 氢谱( HNMR )、碳 谱 168.84, 164.58 (d, J = 271.5 Hz), 159.80 (d, J =
13
( CNMR)、高效液相色谱(HPLC)以及高分辨质 246 Hz), 156.30 (d, J = 15 Hz), 156.05, 153.09 (d, J =
15 Hz), 152.63, 151.25, 130.27, 122.36 (d, J = 9.0 Hz),
谱(HRMS)表征。
112.90 (d, J = 25.5 Hz), 110.76 (d, J = 19.5 Hz),
5- 氟 -12H- 苯并 [2,3][1,4] 氧杂氮杂环庚并 109.35 (d, J = 24 Hz), 107.48 (d, J = 25.5 Hz), 102.77,
[5,6,7-de]喹啉-1-甲酸乙酯(Ⅲa):白色固体,54 mg, 61.65, 14.43;HRMS(ESI),m/Z:理论值 C 18 H 12 F 2 N 2 O 3
1
收率 为 83.7% , HPLC 纯度 99.34% ; HNMR [M+H] 343.0899,实测值 343.0891。
+
(600 MHz, CDCl 3 ), δ:11.590 (s, 1H), 9.130 (s, 1H), 5-氟-10-甲氧基-12H-苯并[2,3][1,4]氧杂氮杂环
7.388 (d, J = 10.2 Hz, 1H), 7.238~7.250 (m, 1H), 庚并[5,6,7-de]喹啉-1-甲酸乙酯(Ⅲe):淡黄色固体,
7.105~7.126 (m, 2H), 7.025~ 7.061 (m, 2H), 4.470 (q, 61 mg,收率为 85.6%,HPLC 纯度 99.06%; HNMR
1
13
J = 6.6 Hz, 2H), 1.470 (t, J = 6.6 Hz, 3H); CNMR
(600 MHz, CDCl 3 ), δ:11.542 (s, 1H), 9.124 (s, 1H),
(150 MHz, CDCl 3 ), δ:168.78, 164.60 (d, J = 252 Hz), 7.370~7.390 (m, 1H), 7.136 (d, J = 9.0 Hz, 1H),
156.80 (d, J = 13.5 Hz), 153.05 (d, J = 13.5 Hz), 6.987~7.006 (m, 1H), 6.215~6.634 (m, 1H), 6.536 (m,
152.54, 151.39, 148.82, 133.76, 125.85, 125.54, 1H), 4.462 (q, J = 7.2 Hz, 2H), 3.768 (s, 3H), 1.467 (t,
121.70, 110.35 (d, J = 19.5 Hz), 107.28 (d, J = 27 Hz), J = 7.2 Hz, 3H) ; CNMR (150 MHz, CDCl 3 ), δ:
13
102.71, 61.51, 14.39;HRMS(ESI),m/Z:理论值 168.82, 164.68 (d, J = 252 Hz), 157.39, 157.20 (d, J =
+
C 18 H 13 FN 2 O 3 [M+H] 325.0983,实测值 325.0988。 13.5 Hz), 152.50 (d, J = 13.5 Hz), 152.42, 151.62,
5- 氟 -12H- 苯并 [2,3][1,4] 硫杂氮杂环庚并 142.84, 134.35, 122.24, 111.14, 110.51(d, J = 3.0 Hz),
110.14 (d, J = 21 Hz), 107.10 (d, J = 25.5 Hz), 106.39,
[5,6,7-de]喹啉-1-甲酸乙酯(Ⅲb):白色固体,56 mg, 102.70, 61.56, 55.93, 14.40;HRMS(ESI),m/Z:理论
1
收率 为 81.6% , HPLC 纯度 99.75% ; HNMR
+
值 C 19 H 15 FN 2 O 4 [M+H] 355.1089,实测值 355.1088。
(600 MHz, CDCl 3 ), δ:11.885 (s, 1H), 9.181 (s, 1H), 5-氟-12H-吡啶并[3',4':2,3][1,4]氧杂氮杂环庚并
7.549 (d, J = 7.2 Hz, 1H), 7.500 (d, J = 7.8 Hz, 1H),
7.429~7.442 (m, 1H), 7.295~7.320 (m, 1H), [5,6,7-de]喹啉-1-甲酸乙酯(Ⅲf):白色固体,62 mg,
1
7.134~7.167 (m, 2H), 4.495 (q, J = 7.2 Hz, 2H), 1.484 收率为 95.8%,HPLC 纯度 99.21%; HNMR (600
13
(t, J = 6.6 Hz, 3H) ; CNMR (150 MHz, CDCl 3 ), δ: MHz, CD 3 OD), δ:9.425 (s, 1H), 8.932(s, 1H), 8.585
168.99, 163.48 (d, J = 255 Hz), 154.39, 154.00 (d, J = (d, J = 4.8 Hz, 1H), 7.636~7.736 (m, 3H), 4.619 (q,
13
13.5 Hz), 152.55, 144.81, 135.75 (d, J = 9.0 Hz), J = 6.6 Hz, 2H), 1.528 (t, J = 6.6 Hz, 3H); CNMR
131.88, 129.85, 128.59, 126.04, 123.62, 119.33, (150 MHz, CD 3 OD+CF 3 COOH), δ:167.54 (d, J =
119.30 (d, J = 25.5 Hz), 113.95 (d, J = 21 Hz), 104.93, 256.5 Hz), 166.68, 156.40 (d, J = 15 Hz), 152.15,
61.71, 14.41;HRMS(ESI),m/Z:理论值 C 18 H 13 FN 2 O 2 S 150.11, 145.83 (d, J = 18 Hz), 142.15, 139.35, 119.32,
+
[M+H] 341.0755,实测值 341.0750。 117.80, 116.99, 115.89, 111.65 (d, J = 28.5 Hz),
5- 氟 -7,12- 二氢苯 并 [2,3][1,4] 二氮 杂环 庚并 110.61, 106.95, 64.53, 14.31;HRMS(ESI),m/Z:理论
+
值 C 17H 12FN 3O 3 [M+H] 326.0935,实测值 326.0929。
[5,6,7-de]喹啉-1-甲酸乙酯(Ⅲc):橙色固体,56 mg,
1
收率 为 86.4% , HPLC 纯度 99.65% ; HNMR 5-氟-12H-吡啶并[4',3':2,3][1,4]氧杂氮杂环庚并
[5,6,7-de]喹啉-1-甲酸乙酯(Ⅲg):白色固体,62 mg,
(600 MHz, CD 3 OD+CF 3 COOH), δ:9.040 (s, 1H),
1
7.021~7.035 (m, 1H), 6.958~6.976 (m, 1H), 6.875~ 收率 为 94.5% , HPLC 纯度 97.96% ; HNMR
6.900 (m, 1H), 6.793~ 6.806 (m, 2H), 6.757~6.778 (m, (600 MHz, CF 3 COOH+CDCl 3 ), δ:13.144 (s, 1H),
1H), 4.496 (q, J = 7.2 Hz, 2H), 1.474 (t, J = 7.2 Hz, 9.406 (s, 1H), 8.799 (s, 1H), 8.588 (d, J = 4.2 Hz, 1H),
13
3H) ; CNMR (150 MHz, CD 3 OD+CF 3 COOH), δ: 7.927 (d, J = 7.8 Hz, 1H), 7.584 (d, J = 5.4 Hz, 1H),
168.10, 164.34 (d, J = 255 Hz), 156.01, 145.60, 7.422 (d, J = 7.8 Hz, 1H), 4.571 (q, J = 7.2 Hz, 2H),
13
135.97, 124.63, 123.84, 120.84, 118.89, 117.00, 1.485 (t, J = 7.2 Hz, 3H) ; CNMR (150 MHz,