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表3 正离子模式下肉苁蓉总苷在人工肠液中代谢的化合物信息
Tab 3 Identification of chemical composition of total glycosides of C. deserticola after metabolism in artificial intes-
tinal fluid under positive ion mode
正离子质谱信息,m/z
特征峰序号 tR,min 分子量 化合物推测 原型/代谢
一级碎片 二级碎片
1 1.180 401.159 6 311.261 4;309.254 2;279.093 3;209.158 8 400.151 8 甲基-O-芥子醛葡萄糖苷 代谢
2 1.196 261.156 3 133.729 6;131.000 4;115.054 5;87.245 5 260.148 5 D-葡萄糖硫酸结合物 代谢
3 3.280 531.292 1 325.126 0;279.094 2 530.284 3 Dehydrodiconiferyl alcohol-4-O-β-D-glucoside glucuronic acid conjugate 代谢
4 3.314 859.468 6 649.571 3;633.092 6;585.764 0;561.751 1 858.460 8 Acetylated Kankanoside K 代谢
5 3.464 341.098 8 309.254 1;279.094 3 340.091 0 Demethyldehydrodiconiferyl alcohol-4-O-β-D-glucoside 代谢
6 3.814 435.224 1 151.043 5;137.050 4 434.216 3 Dehydrodiconiferyl alcohol-4-O-β-D-glucoside sulfate conjugate 代谢
7 3.847 371.265 3 279.065 6;239.267 7 370.257 5 Hydroxylated dehydrodiconiferyl alcohol-4-O-β-D-glucoside 代谢
8 3.947 387.295 4 309.254 3;279.093 9 386.287 6 羟基化芥子醛葡萄糖苷 代谢
9 4.281 523.286 6 433.223 0;415.209 4;351.210 8;309.254 5 522.278 8 甲基-O-肉苁蓉苷E 代谢
10 7.749 697.387 1 607.217 5;455.205 7;433.222 9;415.211 1 696.379 3 甲基-O-2’-乙酰毛蕊花糖苷 代谢
11 7.882 457.210 3 165.059 0;135.044 3;121.058 0;119.047 5 456.202 5 玉叶金花苷酸硫酸结合物 代谢
12 9.833 369.223 4 309.254 5;279.094 1; 368.215 6 Methylated dehydrodiconiferyl alcohol-4-O-β-D-glucoside 代谢
13 10.066 393.194 4 181.074 7;169.071 1; 392.186 6 羟基化玉叶金花苷酸 代谢
14 10.649 843.513 7 415.206 2;369.173 0;355.181 7 842.505 9 2’-乙酰毛蕊花糖苷葡糖醛酸结合物 代谢
15 11.266 373.232 0 343.148 2;325.142 9;311.289 0;211.021 3 372.224 2 甲基-O-松柏苷 代谢
16 11.400 757.312 0 607.214 2;479.278 2;455.204 7;423.225 9 756.304 2 去甲基管花肉苁蓉苷B 代谢
17 11.700 711.372 7 639.309 3;607.215 5 710.364 9 Methylation Kankanoside J 代谢
18 12.700 727.868 4 625.273 6;455.205 7 726.860 6 Methyl-O-Kankanoside 代谢
19 12.900 777.238 9 607.218 5;455.205 3 776.231 1 Kankanoside J sulfuric acid conjugate 代谢
20 13.167 407.207 7 375.215 9;347.204 2;331.236 0;181.123 6 406.199 9 甲基-O-玉叶金花苷酸 代谢
21 13.284 451.216 0 293.229 9;233.149 1;215.143 6;203.129 8 450.208 2 芥子醛葡萄糖苷硫酸结合物 代谢
22 13.334 739.356 4 639.308 9;607.218 6;533.319 3;455.205 7 738.348 6 Acetylated Kankanoside J 代谢
23 13.717 335.223 6 317.223 8;235.145 4;173.134 2 334.215 8 Demethyl Kankanoside E 代谢
24 13.917 713.094 2 533.321 1;479.279 5;455.205 6 712.086 4 Hydroxylated Kankanoside J 代谢
25 14.134 639.647 9 497.273 6;351.216 0 638.640 1 甲基化毛蕊花糖苷 代谢
26 14.434 847.477 8 649.340 7;533.322 0;465.281 7;455.206 6 846.470 0 Methyl-O-Kankanoside K 代谢
27 14.467 349.239 3 331.114 5;317.096 6 348.231 5 Kankanoside L 原型
28 14.817 705.333 6 465.282 8;447.215 2;433.222 9;415.211 9 704.325 8 毛蕊花糖苷硫酸结合物 代谢
29 16.401 681.517 3 557.182 9;465.285 9 680.509 5 甲基化2’-乙酰毛蕊花糖苷 代谢
30 17.302 553.022 7 523.290 1;329.793 7 552.014 9 玉叶金花苷酸葡糖醛酸结合物 代谢
31 17.368 385.218 6 223.141 8;133.084 8 384.210 8 甲基化芥子醛葡萄糖苷 代谢
32 17.402 385.213 7 353.231 7;335.222 0;293.110 4 384.205 9 Methyl-O-dehydrodiconiferyl alcohol-4-O-β-D-glucoside 代谢
33 17.852 813.325 9 499.293 4;481.289 6;455.208 1 812.318 1 乙酰化管花肉苁蓉苷B 代谢
34 17.935 667.306 1 595.348 3;481.285 8 666.298 3 乙酰化毛蕊花糖苷 代谢
35 18.585 683.356 7 537.272 5;481.278 4;463.268 6;411.243 3 682.348 9 羟基化2’-乙酰毛蕊花糖苷 代谢
36 18.635 683.358 1 581.696 1;499.282 7;481.273 1;455.195 3 682.350 3 Demethyl Kankanoside J 代谢
37 18.786 641.300 9 451.250 8;369.158 2;315.109 4 640.293 1 羟基化毛蕊花糖苷 代谢
38 19.336 787.400 6 581.704 0;557.179 2;515.291 7;465.288 7 786.392 8 羟基化管花肉苁蓉苷B 代谢
39 20.053 801.135 7 769.393 7;499.292 8;455.207 3 800.127 9 甲基-O-管花肉苁蓉苷B 代谢
40 20.086 801.336 2 575.258 9;465.277 0;433.937 3 800.328 4 毛蕊花糖苷葡糖醛酸结合物 代谢
注:因有些化合物只存在英文名称,故以英文表述
Note:Because some compounds only have English names,they are expressed in English
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m/z 357.214 8 为 [M-H] - 峰 ,m/z 311.977 6 为 [M-H- C6H12O6-CH2O-H2O] 峰,推测其为羟基化丁香苷。
HCOOH] 峰,m/z 149.995 8 为[M-H-C6H10O5-HCOOH] - 2.9 人工肠液中各化合物的代谢途径
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峰,推测其为去羟基京尼平苷酸;16号峰(tR=7.803 min) 肉苁蓉总苷在人工肠液中成分分析共推测出 86 个
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分 子 量 为 388.122 1,m/z 387.114 3 为 [M-H] 峰 ,m/z 代谢物,根据总苷代谢相关文献 [14-15] 推测其代谢途径主
319.541 3 为[M-H-CH3OH-2H2O] 峰,m/z 301.728 0 为 要有甲基化、去甲基化、羟基化、去羟基化、甲氧基化、乙
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[M-H-CH3OH-3H2O] 峰,推测其为甲基化京尼平苷酸; 酰化、硫酸化、葡萄糖醛酸化。表明肉苁蓉总苷在人工
21号峰(tR=8.153 min)分子量为388.1224,m/z 387.114 6 肠液中主要是以代谢物的形式存在。人工肠液中代谢
为[M-H] 峰,m/z 323.702 8 为[M-H-2CH3OH] 峰,m/z 产物的典型代谢途径见图6。
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293.839 4 为[M-H-2CH3OH-CH2O] 峰,m/z 263.477 2 为 3 讨论
[M-H-2CH3OH-C2H4O2] - 峰 ,m/z 159.166 4 为 [M-H- 目前大多数药物都为口服给药,胃、肠道是口服给
中国药房 2020年第31卷第1期 China Pharmacy 2020 Vol. 31 No. 1 ·59 ·