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CDCl3 )δ :139.9(C-1),136.5(C-2),69.4(C-3),67.9
(C-4),68.1(C-5),30.0(C-6),168.2(C-1′),40.3(C-2′),
丙酮、浓硫酸
正丙胺等+TBTU
室温搅拌
二氯甲烷/N、N-二甲基甲酰胺 32.2(C-3′),19.8(C-4′),13.8(C-5′)。根据上述波谱数据
确定 T5为(3R,4S,5R)-N-正丁基-3,4,5-三羟基-1-环己
SA 中间体b 中间体c4~c11
烯-1-甲酰胺。
目标化合物 T6——白色固体,mp:136~138 ℃,
冰醋酸、水
ESI-MS:m/z 250.10[M+H] 。 H-NMR(400 MHz,DMSO-
加热回流 + 1
d6 )δ:2.06~2.13(dd,1H,J=18.0,7.0 Hz,H-6ax),2.58~
T4~T11
2.64(dd,1H,J=18.0,7.2 Hz,H-6eq),3.56~3.58(m,
1H,H-5),3.87~3.80(m,1H,H-4),4.27(m,1H,H-3),
4.59~4.60(d,1H,J=7.0 Hz,5-OH),4.74~4.76(d,1H,
J=7.0 Hz,4-OH),4.81~4.83(d,1H,J=7.0 Hz,3-OH),
6.45(d,1H,J=6.0 Hz,H-2),7.01~7.07(d,1H,J=8.0
Hz,H-5′),7.26~7.32(t,2H,J=8.1 Hz,H-4′,6′),7.65~
7.69(d,2H,J=8.0 Hz,H-3′,7′),9.67(s,1H,-NH-);
13 C-NMR(100 MHz,CDCl3 )δ:139.9(C-1),136.5(C-2),
A.目标化合物T4~T11
69.4(C-3),67.9(C-4),68.1(C-5),30.0(C-6),163.1
(C-1′),137.6(C-2′),121.6(C-3′,7′),128.9(C-4′,6′),
醋酐、吡啶 氯化亚砜,加热回流
室温搅拌 2-氨基吡啶、二氯甲烷、吡啶,搅拌 128.0(C-5′)。根据上述波谱数据确定 T6 为(3R,4S,
SA 中间体h 中间体i 5R)-N-苯基-3,4,5-三羟基-1-环己烯-1-甲酰胺。
目 标 化 合 物 T7—— 白 色 固 体 ,mp:86~88 ℃ ,
ESI-MS:m/z 264.11[M+H] 。 H-NMR(300 MHz,DMSO-
+
1
甲醇钠
室温搅拌
d6 )δ:2.01~2.07(dd,1H,J=18.0,7.0 Hz,H-6ax),2.50~
2.56(dd,1H,J=18.0,7.0 Hz,H-6eq),3.53(m,1H,H-5),
T12
3.84(m,1H,H-4),4.20(m,1H,H-3),4.31(s,2H,
B.目标化合物T12
图3 目标化合物T4~T12的合成路线
2′-CH2 ),4.53(d,1H,J=7.0 Hz,5-OH),4.68~4.70(d,
Fig 3 The synthetic route to the target compounds
1H,J=7.0 Hz,4-OH),4.77(s,1H,J=7.0 Hz,3-OH),
T4-T12
6.37(d,1H,J=6.0 Hz,H-2),7.23~7.30(m,5H,Ar-H),
(m,2H,H-2′),3.48~3.50(m,1H,H-5),3.80(m,1H, 8.40(s,1H,-NH-);C-NMR(100 MHz,CDCl3 )δ:139.9
13
H-4),4.17(m,1H,H-3),4.54~4.56(d,1H,J=7.0 Hz, (C-1),136.5(C-2),69.4(C-3),67.9(C-4),68.1(C-5),
5-OH),4.68~4.70(d,1H,J=7.3 Hz,4-OH),4.77~4.78 30.0(C-6),168.5(C-1′),43.9(C-2′),137.9(C-3′),126.9
(d,1H,J=7.2 Hz,3-OH),6.27(d,1H,J=6.3 Hz,H-2), (C-4′,8′),128.5(C-5′,7′),126.7(C-6′)。根据上述波谱
7.81~7.84(t,1H,J=6.0 Hz,-NH-);C-NMR(100 MHz, 数据确定 T7为(3R,4S,5R)-N-苄基-3,4,5-三羟基-1-环
13
CDCl3 )δ :139.9(C-1),136.5(C-2),69.4(C-3),67.9 己烯-1-甲酰胺。
(C-4),68.1(C-5),30.0(C-6),168.2(C-1′),40.9(C-2′), 目标化合物 T8——白色晶体,mp:179~180 ℃,
23.1(C-3′),11.2(C-4′)。根据上述波谱数据确定 T4为 ESI-MS:m/z 264.11[M+H] 。 H-NMR(400 MHz,DMSO-
+
1
(3R,4S,5R)-N-正丙基-3,4,5-三羟基-1-环己烯-1-甲 d6 )δ:2.05~2.10(dd,1H,J=16.0,7.0 Hz,H-6ax),2.25
酰胺。 (s,3H,-CH3 ),2.58~2.62(dd,1H,J=18.0,7.0 Hz,
目标化合物 T5——白色固体,mp:103~104 ℃, H-6eq),3.53~3.57(m,1H,H-5),3.86~3.88(m,1H,
+
1
ESI-MS:m/z 230.13[M+H] 。 H-NMR(400 MHz,DMSO- H-4),4.26(m,1H,H-3),4.65~4.66(d,1H,J=7.0 Hz,
d6 )δ:0.84~0.89(t,3H,J=7.5 Hz,H-5′),1.24~1.32(m, 5-OH),4.78~4.80(d,1H,J=7.0 Hz,4-OH),4.85~4.86
2H,H-4′),1.35~1.43(m,2H,H-3′),1.93~2.00(dd,1H, (d,1H,J=7.0 Hz,3-OH),6.43(d,1H,J=6.0 Hz,H-2),
J=18.0,7.0 Hz,H-6ax),2.46~2.48(dd,1H,J=18.0,7.0 7.08~7.10(d,2H,J=8.0 Hz,H-3′,7′),7.54~7.56(d,
Hz,H-6eq),3.05~3.10(t,2H,J=7.5 Hz,H-2′),3.46~ 2H,J=8.0 Hz,H-4′,6′),9.63(s,1H,-NH-);C-NMR
13
3.50(m,1H,H-5),3.79~3.82(m,1H,H-4),4.16(m,1H, (100 MHz,CDCl3 )δ:39.9(C-1),136.5(C-2),69.4(C-3),
H-3),4.64~4.69(m,2H,4-OH,5-OH),6.26(d,1H,J= 67.9(C-4),68.1(C-5),30.0(C-6),163.1(C-1′),134.6
6.0 Hz,H-2),7.76(s,1H,-NH-);C-NMR(100 MHz, (C-2′),121.5(C-3′,7′),129.2(C-4′,6′),136.8(C-5′),
13
·948 · China Pharmacy 2020 Vol. 31 No. 8 中国药房 2020年第31卷第8期