基本信息
UVλmax(C2H5OH) nm (lgε): 216 (4.24),230 (4.21),236 (4.21),246 (4.22),264(sh),271 (4.26),281 (4.26),355 (3.53),391 (3.68)。
IRνmax(KBr) cm-1:3600 (OH),2960,1640 (C=O),1630,1580,1445,1382,1353,1333,1280,1240,1155,1125,1003,797,760,670。
1HNMR (CDCl3) δ:1.47(6H,s,2×CH3),3.98(3H,s,-C-OCH3 ),5.62(d,J=10Hz),7.08(d,J=10Hz)-HC=CH,7.36(αH,m),8.13(1H,m),8.33(1H,m),芳环上氢,11.71(OH,重水交换后消失)。
13CNMR (CDCl3) δ:156.5 [s,C2(1′)],112.5[s,C3(2′)],121.9 (d,C4),129.2 (d,C5),74.5 (s,C6),26.3 (C9,C7,8),102.2 (s,C3′),141.6 (s,C4′),122.3 (d,C5′),126.2 (d,C6′),128.7 (d,C7′),124.1 (d,C3′),129.0 (s,C3′),125.1 (s,C10′),172.4 (s,C11′),62.1 (q,C12′)。
MS m/z:284.10
波谱分析图:
参考资料: [1] 刘永隆, 白亦莉. 大叶茜草化学成分的研究. 药学学报, 1985, 20 (1): 53 [2] 孙文基, 谢世昌 主编;赵晔, 张兴群, 陈千良等 编. 天然药物成分定量分析. 北京:中国医药科技出版社,2003。第391-393页。 [3] 陈海生 主编. 实用波谱综合分析. 上海:第二军医大学出版社,2011。第 189-194页。
化学性质
用途
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | methyl 6-methoxy-2,2-dimethyl-2H-naphtho[1,2-b]pyran-5-carboxylate | 97400-66-3 | C18H18O4 | 298.339 |
—— | methyl 6-(methoxymethoxy)-2,2-dimethyl-2H-benzo[h]chromene-5-carboxylate | 1010732-35-0 | C19H20O5 | 328.365 |
二氢大叶茜草素 | methyl 6-hydroxy-2,2-dimethyl-3,4-dihydro-2H-benzo-[h]chromene-5-carboxylate | 60657-93-4 | C17H18O4 | 286.328 |
—— | 1,4-dimethoxy-3-(3-methyl-but-2-enyl)-naphthalene-2-carboxylic acid methyl ester | 873531-15-8 | C19H22O4 | 314.381 |
—— | methyl (3-allyl-1,4-dimethoxynaphthalene-2-yl)carboxylate | 221122-91-4 | C17H18O4 | 286.328 |
—— | 5-bromo-6-methoxy-2,2-dimethyl-2H-naphtho[1,2-b]pyran | 909576-35-8 | C16H15BrO2 | 319.198 |
1-羟基-4-甲氧基-2-萘甲酸甲酯 | methyl 1-hydroxy-4-methoxy-2-naphthoate | 105379-29-1 | C13H12O4 | 232.236 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | methyl 6-methoxy-2,2-dimethyl-2H-naphtho[1,2-b]pyran-5-carboxylate | 97400-66-3 | C18H18O4 | 298.339 |
—— | 6-hydroxy-2,2-dimethyl-2H-benzo[h]chromene-5-carboxylic acid | 60975-91-9 | C16H14O4 | 270.285 |
—— | methyl 6-acetoxy-2,2-dimethyl-2H-benzo[h]chromene-5-carboxylate | 70859-07-3 | C19H18O5 | 326.349 |
—— | methyl 6-(methoxymethoxy)-2,2-dimethyl-2H-benzo[h]chromene-5-carboxylate | 1010732-35-0 | C19H20O5 | 328.365 |
—— | methyl 6-benzyloxy-2,2-dimethyl-2H-benzo[h]chromene-5-carboxylate | 1025006-46-5 | C24H22O4 | 374.436 |
二氢大叶茜草素 | methyl 6-hydroxy-2,2-dimethyl-3,4-dihydro-2H-benzo-[h]chromene-5-carboxylate | 60657-93-4 | C17H18O4 | 286.328 |
—— | (+/-)-methyl cis-3,4,6-trihydroxy-2,2-dimethyl-3,4-dihydro-2H-benzo[h]chromene-5-carboxylate | —— | C17H18O6 | 318.326 |