EP1313490A1 - Pharmaceutical composition comprising wikstromol and/or matairesinol, its use as hepatoprotectant and process for their isolation from cedrus deodara - Google Patents
Pharmaceutical composition comprising wikstromol and/or matairesinol, its use as hepatoprotectant and process for their isolation from cedrus deodaraInfo
- Publication number
- EP1313490A1 EP1313490A1 EP00991822A EP00991822A EP1313490A1 EP 1313490 A1 EP1313490 A1 EP 1313490A1 EP 00991822 A EP00991822 A EP 00991822A EP 00991822 A EP00991822 A EP 00991822A EP 1313490 A1 EP1313490 A1 EP 1313490A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- wikstromol
- matairesinol
- composition
- additives
- additive
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- MATGKVZWFZHCLI-LSDHHAIUSA-N (-)-matairesinol Chemical compound C1=C(O)C(OC)=CC(C[C@@H]2[C@H](C(=O)OC2)CC=2C=C(OC)C(O)=CC=2)=C1 MATGKVZWFZHCLI-LSDHHAIUSA-N 0.000 title claims abstract description 124
- ZITBJWXLODLDRH-UHFFFAOYSA-N (+)--Wikstromol Natural products C1=C(O)C(OC)=CC(CC2C(C(=O)OC2)(O)CC=2C=C(OC)C(O)=CC=2)=C1 ZITBJWXLODLDRH-UHFFFAOYSA-N 0.000 title claims abstract description 84
- 238000002955 isolation Methods 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 title claims description 29
- 241000218646 Cedrus deodara Species 0.000 title claims description 23
- 239000008194 pharmaceutical composition Substances 0.000 title claims 3
- ZITBJWXLODLDRH-VLIAUNLRSA-N 3-hydroxy-3,4-bis[(4-hydroxy-3-methoxyphenyl)methyl]oxolan-2-one Chemical compound C1=C(O)C(OC)=CC(C[C@H]2[C@@](C(=O)OC2)(O)CC=2C=C(OC)C(O)=CC=2)=C1 ZITBJWXLODLDRH-VLIAUNLRSA-N 0.000 title description 6
- RNXYRAQIZQGUIK-UHFFFAOYSA-N matairesinol Natural products COc1cc(CC2OCC(=O)C2Cc3ccc(O)c(OC)c3)ccc1O RNXYRAQIZQGUIK-UHFFFAOYSA-N 0.000 title description 4
- 235000000055 matairesinol Nutrition 0.000 title description 4
- FWKQNCXZGNBPFD-UHFFFAOYSA-N Guaiazulene Chemical compound CC(C)C1=CC=C(C)C2=CC=C(C)C2=C1 FWKQNCXZGNBPFD-UHFFFAOYSA-N 0.000 title description 2
- ZITBJWXLODLDRH-XOBRGWDASA-N (-)-Nortrachelogenin Natural products C1=C(O)C(OC)=CC(C[C@@H]2[C@@](C(=O)OC2)(O)CC=2C=C(OC)C(O)=CC=2)=C1 ZITBJWXLODLDRH-XOBRGWDASA-N 0.000 claims abstract description 75
- 150000001875 compounds Chemical class 0.000 claims abstract description 30
- 239000000654 additive Substances 0.000 claims abstract description 29
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 25
- 230000002443 hepatoprotective effect Effects 0.000 claims abstract description 13
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 11
- 239000000203 mixture Substances 0.000 claims description 29
- 230000003078 antioxidant effect Effects 0.000 claims description 21
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 18
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 claims description 16
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 15
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 claims description 15
- 230000000996 additive effect Effects 0.000 claims description 14
- 241000196324 Embryophyta Species 0.000 claims description 11
- 239000002516 radical scavenger Substances 0.000 claims description 8
- 229940123457 Free radical scavenger Drugs 0.000 claims description 7
- 238000000605 extraction Methods 0.000 claims description 7
- 239000000341 volatile oil Substances 0.000 claims description 7
- 239000002904 solvent Substances 0.000 claims description 6
- 238000010828 elution Methods 0.000 claims description 5
- 238000001644 13C nuclear magnetic resonance spectroscopy Methods 0.000 claims description 4
- 238000005160 1H NMR spectroscopy Methods 0.000 claims description 4
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 claims description 4
- 238000007796 conventional method Methods 0.000 claims description 3
- 239000000284 extract Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 230000000704 physical effect Effects 0.000 claims description 3
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- 125000000457 gamma-lactone group Chemical group 0.000 claims description 2
- 235000014633 carbohydrates Nutrition 0.000 claims 5
- 150000001720 carbohydrates Chemical class 0.000 claims 5
- 239000003937 drug carrier Substances 0.000 claims 5
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- 235000006708 antioxidants Nutrition 0.000 description 22
- 150000003254 radicals Chemical class 0.000 description 13
- 229930013686 lignan Natural products 0.000 description 10
- 235000009408 lignans Nutrition 0.000 description 10
- 150000005692 lignans Chemical class 0.000 description 10
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 9
- 230000000694 effects Effects 0.000 description 6
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 5
- 239000002023 wood Substances 0.000 description 4
- GVJHHUAWPYXKBD-UHFFFAOYSA-N (±)-α-Tocopherol Chemical compound OC1=C(C)C(C)=C2OC(CCCC(C)CCCC(C)CCCC(C)C)(C)CCC2=C1C GVJHHUAWPYXKBD-UHFFFAOYSA-N 0.000 description 3
- 102100036475 Alanine aminotransferase 1 Human genes 0.000 description 3
- 108010082126 Alanine transaminase Proteins 0.000 description 3
- 206010003210 Arteriosclerosis Diseases 0.000 description 3
- 206010019851 Hepatotoxicity Diseases 0.000 description 3
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- 230000004071 biological effect Effects 0.000 description 3
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- 231100000304 hepatotoxicity Toxicity 0.000 description 3
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- 210000002966 serum Anatomy 0.000 description 3
- GVJHHUAWPYXKBD-IEOSBIPESA-N α-tocopherol Chemical compound OC1=C(C)C(C)=C2O[C@@](CCC[C@H](C)CCC[C@H](C)CCCC(C)C)(C)CCC2=C1C GVJHHUAWPYXKBD-IEOSBIPESA-N 0.000 description 3
- ZITBJWXLODLDRH-JLTOFOAXSA-N (+)-Wikstromol Natural products C1=C(O)C(OC)=CC(C[C@H]2[C@](C(=O)OC2)(O)CC=2C=C(OC)C(O)=CC=2)=C1 ZITBJWXLODLDRH-JLTOFOAXSA-N 0.000 description 2
- ZITBJWXLODLDRH-VBKZILBWSA-N (3R,4S)-3-hydroxy-3,4-bis[(4-hydroxy-3-methoxyphenyl)methyl]oxolan-2-one Chemical compound C1=C(O)C(OC)=CC(C[C@@H]2[C@](C(=O)OC2)(O)CC=2C=C(OC)C(O)=CC=2)=C1 ZITBJWXLODLDRH-VBKZILBWSA-N 0.000 description 2
- 244000068687 Amelanchier alnifolia Species 0.000 description 2
- 235000009027 Amelanchier alnifolia Nutrition 0.000 description 2
- 108010003415 Aspartate Aminotransferases Proteins 0.000 description 2
- 102000004625 Aspartate Aminotransferases Human genes 0.000 description 2
- INPPVVSEQRZCLJ-UHFFFAOYSA-N Carinol Chemical compound C1=C(O)C(OC)=CC(CC(CO)C(O)(CO)CC=2C=C(OC)C(O)=CC=2)=C1 INPPVVSEQRZCLJ-UHFFFAOYSA-N 0.000 description 2
- LHQJDCXEZZAFKD-UHFFFAOYSA-N Carissanol Chemical compound C1=C(O)C(OC)=CC(CC2C(C(O)OC2)(O)CC=2C=C(OC)C(O)=CC=2)=C1 LHQJDCXEZZAFKD-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 241001465754 Metazoa Species 0.000 description 2
- 206010028980 Neoplasm Diseases 0.000 description 2
- 206010037660 Pyrexia Diseases 0.000 description 2
- 230000002292 Radical scavenging effect Effects 0.000 description 2
- 241000700159 Rattus Species 0.000 description 2
- 230000001929 anti-hepatotoxic effect Effects 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 201000011510 cancer Diseases 0.000 description 2
- 208000035475 disorder Diseases 0.000 description 2
- 230000007760 free radical scavenging Effects 0.000 description 2
- 230000036542 oxidative stress Effects 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 235000017807 phytochemicals Nutrition 0.000 description 2
- 229930000223 plant secondary metabolite Natural products 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- VZGDMQKNWNREIO-UHFFFAOYSA-N tetrachloromethane Chemical compound ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- -1 (-)- Matairesinol (4 Chemical class 0.000 description 1
- MJYQFWSXKFLTAY-OVEQLNGDSA-N (2r,3r)-2,3-bis[(4-hydroxy-3-methoxyphenyl)methyl]butane-1,4-diol;(2r,3r,4s,5s,6r)-6-(hydroxymethyl)oxane-2,3,4,5-tetrol Chemical compound OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O.C1=C(O)C(OC)=CC(C[C@@H](CO)[C@H](CO)CC=2C=C(OC)C(O)=CC=2)=C1 MJYQFWSXKFLTAY-OVEQLNGDSA-N 0.000 description 1
- NVKAWKQGWWIWPM-ABEVXSGRSA-N 17-β-hydroxy-5-α-Androstan-3-one Chemical compound C1C(=O)CC[C@]2(C)[C@H]3CC[C@](C)([C@H](CC4)O)[C@@H]4[C@@H]3CC[C@H]21 NVKAWKQGWWIWPM-ABEVXSGRSA-N 0.000 description 1
- 102000001707 3',5'-Cyclic-AMP Phosphodiesterases Human genes 0.000 description 1
- 108010054479 3',5'-Cyclic-AMP Phosphodiesterases Proteins 0.000 description 1
- 244000215068 Acacia senegal Species 0.000 description 1
- 235000006491 Acacia senegal Nutrition 0.000 description 1
- 108700016171 Aspartate ammonia-lyases Proteins 0.000 description 1
- 229910014033 C-OH Inorganic materials 0.000 description 1
- 208000024172 Cardiovascular disease Diseases 0.000 description 1
- 240000009248 Carissa edulis Species 0.000 description 1
- 235000012937 Carissa edulis Nutrition 0.000 description 1
- 241000218645 Cedrus Species 0.000 description 1
- ZSSOEDOJNKLXOG-UHFFFAOYSA-N Cedrusinin Natural products C1=C(O)C(OC)=CC(C2C(C3=CC(CCCO)=CC=C3O2)CO)=C1 ZSSOEDOJNKLXOG-UHFFFAOYSA-N 0.000 description 1
- 241000218631 Coniferophyta Species 0.000 description 1
- 229910014570 C—OH Inorganic materials 0.000 description 1
- 206010012735 Diarrhoea Diseases 0.000 description 1
- 229920000084 Gum arabic Polymers 0.000 description 1
- 101000703436 Homo sapiens Sex hormone-binding globulin Proteins 0.000 description 1
- 240000006240 Linum usitatissimum Species 0.000 description 1
- 235000004431 Linum usitatissimum Nutrition 0.000 description 1
- 241000218922 Magnoliophyta Species 0.000 description 1
- 241000700157 Rattus norvegicus Species 0.000 description 1
- 208000025747 Rheumatic disease Diseases 0.000 description 1
- 241001474728 Satyrodes eurydice Species 0.000 description 1
- 108010089417 Sex Hormone-Binding Globulin Proteins 0.000 description 1
- 102000034755 Sex Hormone-Binding Globulin Human genes 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- YFVZKLQNMNKWSB-UHFFFAOYSA-N Trachelogenin Natural products C1=C(O)C(OC)=CC(CC2(O)C(OCC2CC=2C=C(OC)C(OC)=CC=2)=O)=C1 YFVZKLQNMNKWSB-UHFFFAOYSA-N 0.000 description 1
- 108090000340 Transaminases Proteins 0.000 description 1
- 208000025865 Ulcer Diseases 0.000 description 1
- 229930003427 Vitamin E Natural products 0.000 description 1
- 244000060545 Wikstroemia viridiflora Species 0.000 description 1
- 235000010489 acacia gum Nutrition 0.000 description 1
- 239000004480 active ingredient Substances 0.000 description 1
- 239000012675 alcoholic extract Substances 0.000 description 1
- 229940087168 alpha tocopherol Drugs 0.000 description 1
- 229960003473 androstanolone Drugs 0.000 description 1
- 230000000879 anti-atherosclerotic effect Effects 0.000 description 1
- 230000001093 anti-cancer Effects 0.000 description 1
- 230000003178 anti-diabetic effect Effects 0.000 description 1
- 230000001708 anti-dyslipidemic effect Effects 0.000 description 1
- 230000003110 anti-inflammatory effect Effects 0.000 description 1
- 230000002790 anti-mutagenic effect Effects 0.000 description 1
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- 230000002026 carminative effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000002026 chloroform extract Substances 0.000 description 1
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- 235000005911 diet Nutrition 0.000 description 1
- 230000037213 diet Effects 0.000 description 1
- MGJZITXUQXWAKY-UHFFFAOYSA-N diphenyl-(2,4,6-trinitrophenyl)iminoazanium Chemical compound [O-][N+](=O)C1=CC([N+](=O)[O-])=CC([N+]([O-])=O)=C1N=[N+](C=1C=CC=CC=1)C1=CC=CC=C1 MGJZITXUQXWAKY-UHFFFAOYSA-N 0.000 description 1
- 239000002934 diuretic Substances 0.000 description 1
- 230000001882 diuretic effect Effects 0.000 description 1
- HHEAADYXPMHMCT-UHFFFAOYSA-N dpph Chemical compound [O-][N+](=O)C1=CC([N+](=O)[O-])=CC([N+]([O-])=O)=C1[N]N(C=1C=CC=CC=1)C1=CC=CC=C1 HHEAADYXPMHMCT-UHFFFAOYSA-N 0.000 description 1
- 208000001848 dysentery Diseases 0.000 description 1
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- 239000000796 flavoring agent Substances 0.000 description 1
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- 235000004426 flaxseed Nutrition 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 235000012055 fruits and vegetables Nutrition 0.000 description 1
- WIGCFUFOHFEKBI-UHFFFAOYSA-N gamma-tocopherol Natural products CC(C)CCCC(C)CCCC(C)CCCC1CCC2C(C)C(O)C(C)C(C)C2O1 WIGCFUFOHFEKBI-UHFFFAOYSA-N 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 102000048863 human SHBG Human genes 0.000 description 1
- TUJKJAMUKRIRHC-UHFFFAOYSA-N hydroxyl Chemical compound [OH] TUJKJAMUKRIRHC-UHFFFAOYSA-N 0.000 description 1
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- 210000004698 lymphocyte Anatomy 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- OGFXBIXJCWAUCH-UHFFFAOYSA-N meso-secoisolariciresinol Natural products C1=2C=C(O)C(OC)=CC=2CC(CO)C(CO)C1C1=CC=C(O)C(OC)=C1 OGFXBIXJCWAUCH-UHFFFAOYSA-N 0.000 description 1
- 239000008601 oleoresin Substances 0.000 description 1
- 150000008442 polyphenolic compounds Chemical class 0.000 description 1
- 230000003389 potentiating effect Effects 0.000 description 1
- FYPMFJGVHOHGLL-UHFFFAOYSA-N probucol Chemical compound C=1C(C(C)(C)C)=C(O)C(C(C)(C)C)=CC=1SC(C)(C)SC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 FYPMFJGVHOHGLL-UHFFFAOYSA-N 0.000 description 1
- 229960003912 probucol Drugs 0.000 description 1
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- 229960000984 tocofersolan Drugs 0.000 description 1
- 229930003799 tocopherol Natural products 0.000 description 1
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- 229960001295 tocopherol Drugs 0.000 description 1
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Definitions
- This invention relates to the isolation of two compounds namely (-)- Matairesinol (4,4 1 - dihydroxy-3, 3 1 - dimethoxylignan-9, 9 1 -olide) and (-)-wikstromol (4,4 1 ,8-trihydroxy-3, 3 1 - dimethoxyliganan-9, 9 1 -olide) from the plant Cedrus deodara in significant yields.
- This invention also identifies the use of the said compounds as a hepatoprotective agent, and as an antioxidant or a free radical scavenger.
- (-)- Wikstromol is found active against p-388 lymphocyte leukemia and anti-HIN activity (M.K.Khamlach, R.Dhal and E.Brown; Premieres syntheses totales du (+)-wikstromol, de la (-)-Trachelogenine, de la (-)- ⁇ ortrachelogenine et des lignoides apparentes - Tetrahedran 48, 10115 - 10126 (1992)].
- the wood of Cedrus deodara possesses diaphoretic, diuretic and carminative properties, and it is useful in treatment of fevers, piles and pulmonary and urinary disorders.
- the extract of the bark is astringent and useful for fevers, diarrhoea and dysentery.
- the oleoresin of deodar and the dark-colored oil obtained from the wood are valued for their application for ulcers and skin diseases. [Ref: Wealth of India, Nol.II, P.108-10 (1950 published by CSIR)].
- SDG seco-isolariciresinalldiglycoside
- DHT human sex hormone-binding globulin
- P.K.Agarwal and P.Rastogi (Phytochemistry vol 21, No 6, pp 1459 - 1461, 1982) reported isolation of two lignans meso-secoisolariciresinol and cedrusinin from Cedrus deodara. The isolation of (-)-matariesional in 0.10 % yield and (+) -wikstromol in 0.124 % yield is reported from Wikstroemia viridiflora (Wikstromol, a new lignan from W ⁇ kstroemia viridi ⁇ ora - Sheela Tandon and R.P.Rastogi; Phytochemistry 1976, vol 15, pp 1789-1791).
- Free radicals are highly energized molecules that contain an unpaired electron. These are produced through normal biological and environmental processes involving oxygen and can trigger chain reactions that product more free radicals. Normally, there is a balance between the amount of free radicals generated in the body and antioxidants to protect against them. However, natural antioxidants present in the body can cope up only with the optimal generation of free radicals and any additional burden of free radicals or lack of antioxidant protection can tip this balance and lead to oxidative stress. There is a need for free radical scavengers or antioxidant principles isolated from natural resources for preparation of formulations useful in alleviating diseases. Hence, it becomes necessary to look for other lignans possessing related and important biological properties.
- the main object of the invention relates to use of (-)-wikstromol and/or (-)-matairesinol as free radical scavengers or antioxidants.
- Another object of the invention relates to use of (-)-wikstromol and useful as an hepatoprotective agent.
- Yet another object of the invention is to provide methods for the isolation of (-)-wikstromol and/or (-)-matairesinol from Cedrus deodara.
- Still another object of the invention is to provide methods for the treatment of artherosclerosis.
- the invention provides novel compositions containing (-)-wikstromol and/or (-)-matairesinol and useful as free radical scavengers and antioxidants.
- the invention also provides novel compositions containing (-)-wikstromol and useful as hepatoprotective agent.
- the invention further provides methods for the isolation of (-)-wikstromol and/or (-)-matairesinol from Cedrus deodara as well as use of the compounds for the treatment of artherosclerosis.
- the invention provides a composition comprising an effective amount of (-)- wikstromol together with or associated with an additive and useful as an antioxidant.
- the composition contains an effective amount of (-)-matairesinol together with additive and useful as an antioxidant.
- the composition contains an effective amount of (-)-wikstromol together with or associated with an additive and useful as hepatoprotective agent.
- the additive is selected in such a manner that they do no affect or interfere with the efficacy of active principles of the composition.
- the additive is such that they enhance and do not retard the activity of the active ingredients i.e. (-)-wikstromol and/or (-)-matairesinol.
- the ratio of (-)-wikstromol and/or (-)-matairesinol with the additive is in the range between 0.1 : 10 to 2: 10.
- the invention provides a process for the isolation of (-)-wikstromol and/or (-)- matairesinol from the Cedrus deodara, said process comprising the steps of: a) extraction of the pulverized plant parts o ⁇ Cedrus deodara with solvents to remove the essential oils; b) concentrating the extract under vacuum to obtain a residue; c) adding ethyl acetate to the residue obtained in step (b); d) separating the solvents by conventional methods; e) subjecting the residue to a first elution with about 3% methanol in chloroform to obtain (-)-matairesinol; and f) subjecting the residue of step (e) to a second elution with about 5% methanol to obtain (-)-wikstromol.
- the solvents used in step (a) are hexane and chloroform.
- the plant parts of Cedrus deodara such as bark and leaves are used for extraction.
- the wasted plant parts of Cedrus deodara are employed for isolation of the said compound.
- the waste left after extraction of essential oil from the plant parts is used in the process.
- (-)-Wikstromol or (-)-matairesinol may be administered together with or in combination with therapeutically acceptable additives.
- the effective amount of (-)-wikstromol or (-)- matairesinol that may be administered to a subject can be readily determined by a person skilled in the art. However, it is recommended that the dosage of (-)-wikstromol or (-)- matairesinol administered may be in the range of 250 to 300 mg per dose, twice a day.
- compositions employing (-)-wikstromol or (-)-matairesinol may be prepared by conventional methods as known in the art.
- the compositions may be in the form of tablets, capsules or syrups, etc.
- Suitable additives as known in the art may be selected for the preparation of these compositions.
- the focus of the invention is to provide methods for using (-)-wikstromol and/or (-)-matairesinol compositions useful as a free radical scavenger and antioxidant and methods for using (-)-wikstromol as a hepatoprotective agent.
- the heartwood of Cedrus deodara finds extensive use in essential oil industry.
- the oil by name 'cedar wood' oil finds application in flavor and fragrances.
- the heartwood powder after extraction of essential oil is a by-product and waste.
- This invention relates to isolation and purification of the compounds (-)-Matairesinol and (-)-wikstromol from Cedrus deodara and their use as antioxidants and hepatoprotective agent.
- This present invention relates to the isolation of two compounds namely (-)- Matairesinol and (4,4 1 -dihydroxy-3, 3 1 - dimethoxylignan-9, ⁇ olide) and (-)- wikstromol (4,4 X ,8- trihydroxy-3, 3 x -dimethoxyliganan-9, 9 1 -olide) from a new source Cedrus deodara.
- This invention also relates to new use of the compounds as an antioxidant, as as hepatoprotective agent and for the treatment of atheresclorosis.
- the present invention embodies isolation of (-)-Matairesinol and (-)-wikstromol, two antioxidant principles from an entirely new source and their free radical scavenging property compared with known biologically proved anti free radical agents, anti dyslipidemic and anti hepatotoxic efficacies.
- Fig.l represents the structural formulae of (-)-Matairesinol and (-)-Wikstromol.
- Fig. 2(a)&(b) are graphical representations depicting free-radical activity of (-)- Matairesinol and (-)- Wikstromol.
- Fig. 3 is a graphical representation of the hepatoprotective activity of (-)-wikstromol.
- the solid was loaded on silica gel column 60 120 mesh, 3.5 -cm dia. Column loaded to a height of 60cm. Initially, the column was eluted with chloroform followed by 3% methanol in chloroform of get Matairesinol.
- the yield (-)-Matairesinol is around 0.06g.
- Antioxidant activity of the compounds ((-)-Matairesinol and (-)-wikstromol) were tested for their capacity/potency to scavenger most widely used free radical 2,2-diphenyl-l-picryl hydroxyl radical (DPPH).
- DPPH 2,2-diphenyl-l-picryl hydroxyl radical
- Example 3 Carbon tetrachloride is a classical method to induce free radical mediated hepatotoxicity.
- this method was employed.
- Male wistar rats were selected for study.
- the compound was dissolved in a small amount of DMSO and reconstituted in gum acacia/water.
- the compound was given one hour before CC1 administration to the over-night fasted rats in the dose of 250mg/kg-body weight orally.
- Antioxidant compounds recently have attracted the attention due to their broad spectrum activities in disorders of multiple origin viz., coronary heart disease, cancer, diabetes, rheumatic disorders and inflammatory condition where free radicals in causing/fostering the disease play important role. Much attention is being directed now to harness and harvest the antioxidant compounds from natural resources.
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PCT/IN2000/000104 WO2002034277A1 (en) | 2000-10-23 | 2000-10-23 | Pharmaceutical composition comprising wikstromol and/or matairesinol, its use as hepatoprotectant and process for their isolation from cedrus deodara |
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EP00991822A Withdrawn EP1313490A1 (en) | 2000-10-23 | 2000-10-23 | Pharmaceutical composition comprising wikstromol and/or matairesinol, its use as hepatoprotectant and process for their isolation from cedrus deodara |
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EP (1) | EP1313490A1 (en) |
JP (1) | JP2004512308A (en) |
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CN103239560B (en) * | 2013-04-27 | 2014-10-01 | 黄美华 | Composition for liver protection as well as medicinal plaster and medicinal oil thereof |
CN107595833A (en) * | 2017-10-31 | 2018-01-19 | 上海华堇生物技术有限责任公司 | The medicinal usage of cedrin |
CN114392287B (en) * | 2022-01-28 | 2023-01-24 | 国珍健康科技(北京)有限公司 | Pine needle extract for inhibiting activity of 5 alpha reductase as well as preparation method and application thereof |
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2000
- 2000-10-23 EP EP00991822A patent/EP1313490A1/en not_active Withdrawn
- 2000-10-23 JP JP2002537328A patent/JP2004512308A/en active Pending
- 2000-10-23 BR BR0017334-7A patent/BR0017334A/en not_active IP Right Cessation
- 2000-10-23 CN CNA008199817A patent/CN1484528A/en active Pending
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See references of WO0234277A1 * |
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BR0017334A (en) | 2004-07-06 |
CN1484528A (en) | 2004-03-24 |
JP2004512308A (en) | 2004-04-22 |
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