AU2002248014A1 - Agent for topical ophthalmic treatment of ocular inflammatory diseases - Google Patents
Agent for topical ophthalmic treatment of ocular inflammatory diseasesInfo
- Publication number
- AU2002248014A1 AU2002248014A1 AU2002248014A AU2002248014A AU2002248014A1 AU 2002248014 A1 AU2002248014 A1 AU 2002248014A1 AU 2002248014 A AU2002248014 A AU 2002248014A AU 2002248014 A AU2002248014 A AU 2002248014A AU 2002248014 A1 AU2002248014 A1 AU 2002248014A1
- Authority
- AU
- Australia
- Prior art keywords
- hydrogen atom
- hydroxy
- ocular
- agent
- alkyl
- 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.)
- Abandoned
Links
- 208000027866 inflammatory disease Diseases 0.000 title claims description 61
- 230000000699 topical effect Effects 0.000 title claims description 37
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 65
- 239000003795 chemical substances by application Substances 0.000 claims description 64
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 54
- 125000000217 alkyl group Chemical group 0.000 claims description 49
- 230000000694 effects Effects 0.000 claims description 39
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- QJJXYPPXXYFBGM-SHYZHZOCSA-N tacrolimus Natural products CO[C@H]1C[C@H](CC[C@@H]1O)C=C(C)[C@H]2OC(=O)[C@H]3CCCCN3C(=O)C(=O)[C@@]4(O)O[C@@H]([C@H](C[C@H]4C)OC)[C@@H](C[C@H](C)CC(=C[C@@H](CC=C)C(=O)C[C@H](O)[C@H]2C)C)OC QJJXYPPXXYFBGM-SHYZHZOCSA-N 0.000 claims description 25
- 150000003431 steroids Chemical class 0.000 claims description 20
- 125000003545 alkoxy group Chemical group 0.000 claims description 19
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- 125000001181 organosilyl group Chemical class [SiH3]* 0.000 description 1
- 230000036407 pain Effects 0.000 description 1
- 125000002255 pentenyl group Chemical group C(=CCCC)* 0.000 description 1
- 125000001147 pentyl group Chemical group C(CCCC)* 0.000 description 1
- 229940066842 petrolatum Drugs 0.000 description 1
- 235000019271 petrolatum Nutrition 0.000 description 1
- 239000002831 pharmacologic agent Substances 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- KASDHRXLYQOAKZ-OLHLVPFQSA-N pimecrolimus Chemical compound C/C([C@H]1OC(=O)[C@@H]2CCCCN2C(=O)C(=O)[C@]2(O)O[C@@H]([C@H](C[C@H]2C)OC)[C@@H](OC)C[C@@H](C)C\C(C)=C/[C@H](C(C[C@H](O)[C@H]1C)=O)CC)=C\[C@@H]1CC[C@H](Cl)[C@H](OC)C1 KASDHRXLYQOAKZ-OLHLVPFQSA-N 0.000 description 1
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- XAEFZNCEHLXOMS-UHFFFAOYSA-M potassium benzoate Chemical compound [K+].[O-]C(=O)C1=CC=CC=C1 XAEFZNCEHLXOMS-UHFFFAOYSA-M 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 125000004368 propenyl group Chemical group C(=CC)* 0.000 description 1
- 125000001501 propionyl group Chemical group O=C([*])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000006239 protecting group Chemical group 0.000 description 1
- 125000000168 pyrrolyl group Chemical group 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- AJPJDKMHJJGVTQ-UHFFFAOYSA-M sodium dihydrogen phosphate Chemical compound [Na+].OP(O)([O-])=O AJPJDKMHJJGVTQ-UHFFFAOYSA-M 0.000 description 1
- 229940010747 sodium hyaluronate Drugs 0.000 description 1
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical compound [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- YWIVKILSMZOHHF-QJZPQSOGSA-N sodium;(2s,3s,4s,5r,6r)-6-[(2s,3r,4r,5s,6r)-3-acetamido-2-[(2s,3s,4r,5r,6r)-6-[(2r,3r,4r,5s,6r)-3-acetamido-2,5-dihydroxy-6-(hydroxymethyl)oxan-4-yl]oxy-2-carboxy-4,5-dihydroxyoxan-3-yl]oxy-5-hydroxy-6-(hydroxymethyl)oxan-4-yl]oxy-3,4,5-trihydroxyoxane-2- Chemical compound [Na+].CC(=O)N[C@H]1[C@H](O)O[C@H](CO)[C@@H](O)[C@@H]1O[C@H]1[C@H](O)[C@@H](O)[C@H](O[C@H]2[C@@H]([C@@H](O[C@H]3[C@@H]([C@@H](O)[C@H](O)[C@H](O3)C(O)=O)O)[C@H](O)[C@@H](CO)O2)NC(C)=O)[C@@H](C(O)=O)O1 YWIVKILSMZOHHF-QJZPQSOGSA-N 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 125000003718 tetrahydrofuranyl group Chemical group 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- KJAMZCVTJDTESW-UHFFFAOYSA-N tiracizine Chemical compound C1CC2=CC=CC=C2N(C(=O)CN(C)C)C2=CC(NC(=O)OCC)=CC=C21 KJAMZCVTJDTESW-UHFFFAOYSA-N 0.000 description 1
- 125000005147 toluenesulfonyl group Chemical group C=1(C(=CC=CC1)S(=O)(=O)*)C 0.000 description 1
- 125000005425 toluyl group Chemical group 0.000 description 1
- 125000003944 tolyl group Chemical group 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 125000002306 tributylsilyl group Chemical group C(CCC)[Si](CCCC)(CCCC)* 0.000 description 1
- 125000000026 trimethylsilyl group Chemical group [H]C([H])([H])[Si]([*])(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 125000003774 valeryl group Chemical group O=C([*])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 201000005539 vernal conjunctivitis Diseases 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 125000005023 xylyl group Chemical group 0.000 description 1
Description
AGENT FOR TOPICAL OPHTHALMIC TREATMENT OF OCULAR INFLAMMATORY DISEASES
TECHNICAL FIELD The present invention relates to an agent for topical ophthalmic treatment of ocular inflammatory diseases comprising a tricyclo compound as its active ingredient.
BACKGROUND ART The ocular inflammatory diseases have many forms of ocular disorders accompanying various pains, depending on the position of inflammation. The ocular inflammatory diseases include uveitis, conjunctivitis, cyclitis, scleritis, episcleritis, optic neuritis, retrobulbar optic neuritis, keratitis, blepharitis, corneal ulcer, conjunctival ulcer, etc. Further, the ocular inflammatory diseases may be caused by various ocular disorders, an ophthalmic operation or a physical injury to the eye.
The symptoms of the ocular inflammatory diseases include itching, flare, edema, ulcer, etc. The patients with ocular inflammatory diseases account for more than half of all the patients with ocular diseases. Accordingly, agents having ocular anti-inflammatory effects play an important role in the medical scene. Today, steroid drugs and nonsteroidal drugs are mainly used for the ocular inflammatory diseases.
The steroid drugs, which have excellent effects on the ocular inflammatory diseases, are clinically indispensable drugs. However, whether they are administered systemically or topically, they have the risk of bringing serious side effects Such side effects include, for example, steroid glaucoma, infectious eye diseases, steroidal cataract, etc. Especially, patients with chronic ocular inflammatory diseases have a high risk of such side effects. For the specific patients having an already increased intraocular pressure (e.g., glaucoma
patients), such side effects can never be acceptable. Under these circumstances, it has been strongly desired to develop a nonsteroidal ocular anti-inflammatory agent.
Presently, several tens of nonsteroidal anti- s inflammatory agents for internal use have been launched. However, in the case of an agent for treating ocular inflammatory diseases, especially in the case of eye drops, which are the formulations for topical administration to the eye, in addition to the anti-in lammatory effects, the 0 contained agent needs to have characteristics that satisfy necessary requirements unique to the eye drops, such as improvement of water solubility, release of topical irritations on the eye, good transition to the eye tissues, etc. Therefore, it has not been easy to develop the 5 nonsteroidal agent which satisfies these requirements and is effective for the ocular inflammatory diseases.
Besides, in the case of the eye drops, compared to the agent for internal use, the amount administrable. at one time is small.. Thus, in many cases, even the agent effective as 0 the internal agent does not show sufficient effect in the ocular instillation, or it is necessary to administer the agent frequently (at least four times a day) . Therefore, it has been desired to develop the non-steroidal anti- inflammatory eye drops having greater effects in a small 5 amount. An object of the present invention is to provide a non-steroidal ocular anti-inflammatory agent having the superior ocular anti-inflammatory effects in a small amount with high safety.
It is known that FK506 and cyclosporins are effective 0 for the treatment of allergic diseases such as allergic conjunctivitis, vernal conjunctivitis, atopic dermatitis, etc. (e.g., 092/19278) .
However, it is not yet known that some kind of tricyclo compound such as FK506 shows the superior ocular anti-
inflammatory effects by topically administering it in a low dose to the eye of a human suffering from ocular inflammatory diseases, that it is effective even for a subject in whom conventional anti-inflammatory agents show no improving effect, and that' it is effective even for a subject for whom other anti-inflammatory agents cannot be used (e.g., steroid contraindication) .
DISCLOSURE OF THE INVENTION The present inventor has conducted intensive studies and has found that some kind of tricyclo compound continuously shows the superior ocular anti-inflammatory effects by topically administering it in a low dose to the eye of a human suffering from ocular inflammatory diseases.* Further, the present inventor has found that the present agent for topical . ophthalmic treatment is effective for the symptoms caused by ocular inflammatory diseases such as itching, flare, edema, ulcer, etc. Furthermore, the present inventor has found that the present agent for • topical ophthalmic treatment is effective even for a subject in whom conventional anti- inflammatory agents (e.g., steroid and cyclosporins) show no improving effect, and that it is effective even for a subject for whom other anti-inflammatory agents cannot be used (e.g., steroid contraindication) . In this way, the present invention has been completed. Accordingly the present invention provides the following.
(1) A method for treating ocular inflammatory diseases, comprising topical administration of an agent for topical ophthalmic treatment comprising a tricyclo compound as shown by the following general formula (I) or its pharmaceutically acceptable salt to the eye of a human in need of a treatment of ocular inflammatory diseases in the concentration of 0.01% - 0.1%:
wherein adjacent pairs of R1 and R2, R3 and R4, and R5 and RG each independently a) consist of two adjacent hydrogen atoms, wherein R is optionally alkyl, or b)* form., another bond optionally between carbon atoms binding with the members of said pairs;
R7 is hydrogen atom, hydroxy, protected hydroxy or alkyloxy, or may form oxo with R1;
R8 and R9 each independently show hydrogen atom or hydroxy;
R10 is hydrogen atom, alkyl, alkyl substituted by one or more hydroxy, alkenyl, alkenyl substituted by one or more' hydroxy or alkyl substituted by oxo;
X is oxo, (hydrogen atom, hydroxy) , (hydrogen atom, hydrogen atom) , or a group of the formula -CH20-;
Y is oxo, (hydrogen atom, hydroxy) , (hydrogen atom, hydrogen atom)', or a group of the formula N-NR11R12 or N-OR13;
R11 and R each independently show hydrogen atom, alkyl, aryl or tosyl; i ,13 R ,14 R ,1-15 R 16 R17, R18, R19, R22 and R23 each independently show hydrogen atom or alkyl;
R24 is an optionally substituted ring that may contain one or more hetero atom(s) ; and
n is 1 or 2,
•in addition to the meaning noted above, Y, R10 and R may show, together with the carbon atom they bind with, a saturated or unsaturated 5 or 6-membered heterocyclic group containing nitrogen atom, sulfur atom and/or oxygen atom, the heterocyclic group being optionally substituted by one or more group (s) selected from alkyl, hydroxy, alkyloxy, benzyl, a * group of the formula -CH2Se (CβHs) , and alkyl substituted by one or more hydroxy, or its pharmaceutically acceptable salt. (2) The method as described in (1) wherein the tricyclo compound is FK506.
(3) The method as described in (1) wherein the topical administration to the eye is one to four times a day.
(4) The method as described in (1) wherein the agent for topical ophthalmic treatment is an eye drop or eye ointment.
(5) The method as described in (1) wherein the ocular inflammatory diseases are selected from a group consisting of uveitis, conjunctivitis, cyclitis, scleritis, episcleritis, optic neuritis, retrobulbar optic neuritis, keratitis, blepharitis, corneal ulcer, conjunctival ulcer and symptoms • caused by them; ocular inflammatory disease caused by ocular- disorders; ocular inflammatory diseases after an ophthalmic operation; and ocular inflammatory diseases caused by a physical injury. (6) The method as described in (1) wherein the treatment of the ocular inflammatory diseases is aimed at treating itching on the eye .
(7) The method as described in (1) wherein the treatment of* the ocular inflammatory diseases is aimed at treating flare on the eye.
(8) The method as described in (1) wherein the treatment of the ocular inflaimnatory diseases is aimed at treating edema on the eye.
(9) The method as described in (1) wherein the treatment of
the ocular inflammatory diseases is aimed at treating ulcer on the eye.
(10) The method as described in (1) comprising the administration to the human in whom other ocular anti- inflammatory agents show no improving effect.
(11) The method as described in (10) wherein the other ocular anti-inflammatory agents are cyclosporins and/or steroid drugs
(12) The method as described in (1) comprising the administration to the human for whom other ocular anti- inflammatory agents cannot be used.
(13) The method as described in (12) wherein the other ocular anti-inflammatory agents are steroid drugs.
(14) An agent for topical ophthalmic treatment of a human for ocular inflammatory diseases, comprising a tricyclo compound as shown by the general formula (I) or its pharmaceutically acceptable salt as an active ingredient in the concentration of 0.01% - 0.1%.
(15) The agent as described in (14) wherein the tricyclo compound is FK506. (16) The agent as described in (14) wherein the topical ophthalmic treatment comprises administering the agent one to four times a day to the eye.
(17) The agent as described in (14), which is an eye drop or eye ointment. (18) The agent as described in (14) wherein the ocular inflammatory diseases are selected from a group consisting of uveitis, conjunctivitis, cyclitis, scleritis, episcleritis, optic neuritis, retrobulbar optic neuritis, keratitis, blepharitis, corneal ulcer, conjunctival ulcer and symptoms caused by them; ocular inflammatory disease caused by ocular disorders; ocular inflammatory diseases after an ophthalmic operation; and ocular inflammatory diseases caused by a physical injury. (19) The agent as described in (14) wherein the topical
ophthalmic treatment is aimed at treating itching on the eye.
(20) The agent as described in (14) wherein the topical ophthalmic treatment is aimed at treating flare on the eye.
(21) The agent as described in (14) wherein the topical ophthalmic treatment is aimed at treating edema on the eye.
(22) The agent as described in (14) wherein the topical ophthalmic treatment is aimed at treating ulcer on the eye.
(23) The agent as described in (14), which is used for administration to the human in whom other ocular anti- inflammatory agents show no improving effect.
(24) The agent as described in (23) wherein the ocular anti- inflammatory agents are. cyclosporins and/or steroid drugs.
(25) The agent as described in (14), which is used for administration to the human for whom other ocular anti- inflammatory agents cannot be used.
(26) The agent as described in (25) wherein the ocular anti- inflammatory agents are cyclosporins and/or steroid drugs .
(27) A use of a tricyclo compound as shown by the general formula (I) or its pharmaceutically acceptable salt for manufacturing an agent for topical ophthalmic treatment of a human for treating ocular inflammatory diseases characterized in that said agent for treatment comprises said tricyclo compound in the concentration of 0.01% - 0.1%.
BRIEF DESCRIPTION OF DRAWINGS Fig.l is a graph showing the itching decreases by instillation of FK506 eye drop.
DETAILED DESCRIPTION OF THE INVENTION The present invention provides an agent for topical ophthalmic treatment' of a human for ocular inflammatory -diseases, comprising a tricyclo compound as shown by the following general formula (I) or its pharmaceutically * acceptable salt as the active ingredient in the concentration, of 0.01% - 0.1%:
wherein adjacent pairs of R1 and R2, R3 and R4, and R5 and R6 » each independently a) consist of two adjacent hydrogen atoms, wherein R2 is optionally alkyl, or b) form another bond optionally between carbon atoms binding with the members of said pairs;
R is, hydrogen atom, hydroxy, protected hydroxy or alkyloxy, or may. form oxo with R1;
R and R9 each independently show hydrogen atom or hydroxy;
R10 is hydrogen atom, alkyl, alkyl substituted by one or more hydroxy, alkenyl, alkenyl substituted by one or more hydroxy or alkyl substituted by oxo;
X is oxo, (hydrogen atom, hydroxy) , (hydrogen atom, hydrogen atom) , or a group of the formula -CH20-;
Y is oxo, (hydrogen atom, hydroxy) , (hydrogen atom, hydrogen atom) , or a group of the formula N-NRnR12 or N-OR13;
R11 and R12 each independently show hydrogen atom, alkyl, aryl or tosyl;
R17, R18, R 19 R22 and R23 each independently show hydrogen atom or alkyl;
R " is an optionally substituted ring that may contain one or more hetero atom(s); and
n is 1 or 2, in addition to the meaning noted above, Y, Rln and R23 may show, together with the carbon atom they bind with, a saturated or unsaturated 5 or 6-membered heterocyclic group containing nitrogen atom, sulfur atom and/or oxygen atom, the heterocyclic group being optionally substituted by one or more grou (s) selected from alkyl, hydroxy, alkyloxy, benzyl, a group of the formula -CH2Se (C6Hs) , and alkyl substituted by one or more hydroxy, or its pharmaceutically acceptable salt. Further, the present invention relates to a method for treating ocular inflammatory diseases, comprising a topical administration of an agent for topical ophthalmic treatment comprising a tricyclo compound as shown by the above general formula (I) or its pharmaceutically acceptable salt to the eye of a human in need of the treatment of ocular inflammatory diseases in the concentration of 0.01% - 0.1%.
Further, the present invention relates to a use of a tricyclo compound as shown by the above general formula (I) or its pharmaceutically acceptable salt for manufacturing an agent for topical ophthalmic treatment of a human for treating ocular inflammatory diseases, wherein said agent comprises a tricyclo compound in the concentration of 0.01% - 0.1%. * In the general formula (I) , preferable R2 is, for example, cyclo (C3-C ) alkyl optionally having suitable substituent, such as the following.
(a) 3, 4-dioxocyclohexyl,
(b) 3-R20-4-R21-cyclohexyl,
20 wherein R is hydroxy, alkyloxy or -OCH2OCH2CH2OCH3, and -
R 21 is hydroxy, -OCN, alkyloxy, heteroaryloxy having suitable substituent, -OCH20CH2CH2OCH3, protected hydroxy, chloro, bromo, iodo, aminooxalyloxy, azide, p- tolyloxythiocarbonyloxy, or R2bR26CHCOO- (wherein R25 is hydroxy optionally protected where desired or protected ammo, and R* is hydrogen atom or methyl,
or R20 and R21 in combination form an oxygen atom of epoxide ring) ; or (c) cyclopentyl wherein cyclopentyl is substituted by methoxymethyl, optionally protected hydroxymethyl where desired, acyloxymethyl (wherein acyl moiety is optionally quaternized dimethylamino or optionally esterified carboxy) , one or more optionally protected a ino and/or hydroxy, or aminooxalyloxymethyl . Preferable examples include 2-formyl-cyclopentyl . The definition of each symbol used in the formula (I), specific examples thereof and preferable embodiments thereof will be explained in detail in the following.
"Lower" means a group having 1 to 6 carbon atoms unless otherwise indicated. Preferable examples of the alkyl moiety of "alkyl" and
"alkyloxy" include linear or branched aliphatic hydrocarbon residue, such as lower alkyl (e.g., methyl, ethyl, propyl, isopropyl, butyl, isobutyl, pentyl, neopentyl, hexyl and the like) . Preferable examples of "alkenyl" include linear or branched aliphatic hydrocarbon residue having one double bond, such as lower alkenyl (e.g., vinyl, propenyl (e.g., allyl and the like), butenyl, methylpropenyl, pentenyl, hexenyl and the like) . Preferable examples of "aryl" include phenyl, tolyl, xylyl, cumenyl, mesityl, naphthyl and the like.
Preferable examples of the protective group for "protected hydroxy" and "protected a ino" include 1- (loweralkylthio) (lower) alkyl such as lower alkylthiomethyl (e.g., methylthiomethyl, ethylthiomethyl, propylthiomethyl, isopropylthiomethyl, butylthiomethyl, isobutylthiomethyl, hexylthiomethyl and the like) , with more preference given to Ci - C4 alkylthiomethyl and most preference given to methylthiomethyl;
tri-substituted silyl such as t i (lower) alkylsilyl (e.g., trimethylsilyl, triethylsilyl, tributylsilyl, tert- butyl dimethylsilyl, tri-tert-butylsilyl and the like) , and lower alkyldiarylsilyl (e.g., methyldiphenylsilyl, ethyldiphenylsilyl, propyldiphenylsilyl, tert- butyldiphenylsilyl and the like) , with more preference given to tri (C-L - C4) alkylsilyl and Ci - C4 alkyldiphenylsilyl, and most prefererence given to tert-butyl-dimethylsilyl and tert- butyldiphenylsilyl ; acyl such as aliphatic acyl, aromatic acyl and aliphatic acyl substituted by aromatic group, which are derived from carboxylic acid, sulfonic acid and carbamic acid; and the like.
The aliphatic acyl is exemplified by lower alkanoyl optionally having one or more suitable substituent (s) (e.g., carboxy) such as for yl, acetyl, propionyl, butyryl, isobutyryl, valeryl, isovaleryl, pivaloyl, hexanαyl, carboxyacetyl, carboxypropionyl, carboxybutyryl, carboxyhexanoyl and the like; cyclo (lower) alkyloxy (lower) alkanoyl optionally having one or more suitable substituent (s) (e.g., lower alkyl) such as cyclσprαpyloxyacetyl, cyclobutyloxypropionyl, cycloheptyloxybutyryl, mentyloxyacetyl, mentyloxypropionyl, mentyloxybutyryl, mentyloxypentanoyl, mentyloxyhexanoyl and the like; camphorsulfonyl ; lower alkylcarbamoyl having one or more suitable substituent (s) such as carboxy or protected carboxy and the like such as carboxy (lower) alkylcarbamoyl (e.g., carboxymethylcarbamoyl, carboxyethylcarbamoyl, ■ carboxypropylcarbamoyl, carboxybutylcarbamoyl, carboxypentylcarbamoyl, carboxyhexylcarbamoyl) and tri (lower) alkylsilyl (lower) alkyloxycarbonyl (lower) alkylcarbamoyl (e.g., t imethylsilylmethoxycarbonylethylcarbamoyl,
trimethylsilylethoxycarbonylpropylcarbamoyl, triethylsilylethoxycarbonylpropylcarbamoyl, tert-butyl dimethylsi1ylethoxycarbonylpropylcarbamoyl, trimethylsilylpropoxycarbonylbutylcarbamαyl) . Aromatic acyl is exemplified by aroyl optionally having one or more suitable substituent (s) (e.g., nitro) , such as benzoyl, toluoyl, xyloyl, naphthoyl, nitrobenzoyl, dinitrobenzόyl, nitronaphthoyl and the like; and arenesulfonyl optionally having one or more suitable • substituent (s) (e.g., halogen), such as benzenesulfonyl, toluenesulfonyl, xylenesul onyl, naphthalenesulfonyl, fluorobenzenesulfonyl, chlorobenzenesulfonyl, bro obenzenesulfonyl, iodobe'nzenesulfonyl and the like.
The aliphatic acyl substituted by aromatic group may be, for example, ar (lower) alkanoyl optionally having one or more suitable substituent (s) (e.g., lower alkyloxy or trihalo (lower) alkyl and the like), wherein specific examples are phenylacetyl, phenylpropionyl, phenylbutyryl, 2- trifluoromethyl-2-methoxy-2-phenylacetyl, 2-ethyl-2- trifluoromethyl-2-phenylacetyl, 2-trifluoromethyl—2-propoxy- 2-phenylacetyl and the like.
Of the above-mentioned acyl, more preferable acyl includes Ci - C4 alkanoyl optionally having carboxy, cyclo (C5 - Ce) alkyloxy (G*. - C-) alkanoyl having two (Cx - C4) alkyl in the cycloalkyl moiety, camphorsulfonyl, carboxy (Ci - C4) alkylcarbamoyl, tri (Ci - C*) alkylsilyl (Ci -
Cij ) alkyloxycarbonyl (Cx - C-) alkylcarbamoyl, benzoyl optionally having one or two nitro groups, and benzenesulfonyl having halogen, phenyl (Ci - C4) alkanoyl having C - C4 alkyloxy and trihalo (Ci - C4) alkyl. Of these, most preferred are acetyl, carboxypropionyl, mentyloxyacetyl, camphorsulfonyl, benzoyl, nitrobenzoyl, dinitrobenzoyl, iodobenzenesulfonyl, 2- trifluoromethyl-2-methoxy-2-phenylacetyl and the like. Preferable examples of the "heterocyclic group
consisting of saturated or unsaturated 5 or 6-membered ring having nitrogen atom, sulfur atom and/or oxygen atom" are pyrrolyl, tetrahydrofuryl and the like.
The "heteroaryl optionally having a suitable substituent moiety" of the "heteroaryloxy optionally having a suitable substituent" is that exemplified for R1 of the compound of the formula I of EP-A-532088, with preference given to l-hydroxyethylindol-5-yl . The disclosure is incorporated hereinto by reference. The tricyclo compound (I) used in the present invention is described in the publications EP-A-184162, EP-A-323042, EP-A-423714, EP-A-427680, EP-A-465426, EP-A-480623, EP-A- 532088, ' EP-A-532089, EP-A-569337', EP-A-626385, WO89/05303, WO93/05058, 096/31514, W091/13889, W091/19495, 093/5059 and the like. The disclosures of these publications, are incorporated hereinto by reference.
In particular, the compounds called FR900506 (=FK506) , FR900520 (Asco ycin) , FR900523 and FR900525 are produced by the genus Streptomyces, such as Streptomyces tsukubaensis, No. 9993 (depository: National Institute of Advanced Industrial Science and Technology, International Patent Organism Depositary, Central 6, 1-1, Higashi 1-chome, Tsukuba-shi, Ibaraki-ken, Japan (formerly: Fermentation Research. Institute, Agency of Industrial Science and Technology, the Ministry of International Trade and Industry) , .date of deposit : October 5, 1984, deposit number: FERM BP-927) or Streptomyces hygroscopicus sυbsp. Yakushimaensis, No. 7238 (depository National Institute of Advanced Industrial Science and Technology, International Patent Organism Depositary, Central 6, 1-1, Higashi 1-chome, Tsukuba-shi, Ibaraki-ken, Japan (formerly: Fermentation Research Institute, Agency of Industrial Science and Technology, the Ministry of International Trade and Industry), date of deposit: January 12, 1985, deposit number: FERM BP-928 (EP-A-0184162) ) , and
the* compound of the following formula, FK506 (general name Tacrolimus) is a representative compound.
Chemical name: 17-allyl-l, 14-dihydroxy-12- [2- (4-hydroxy-3- ethoxycyclohexyl) -1-methylvinyl] -23, 25-dimethoxy- 13, 19,21, 27-tetramethyl-ll,28-dioxa-4- aza ricyclo [22.3.1.04' 9] octacos-18-ene-2, 3,10,16- tetraone
Of the tricyclo compounds (I), more preferred is a compound wherein adjacent pairs of R3 and R4, and R and R6 each independently form another bond optionally between carbon atoms binding with the members of said pairs;
R and R each independently show hydrogen atom;
R9 is hydroxy;
R10 is methyl, ethyl, propyl or allyl;
X is (hydrogen atom, hydrogen atom) or oxo;
Y is oxo;
R14, R15, R1S, R17, R18, R19 and R22 each independently show methyl;
R24 is 3-R20-4-R21-cyclohexyl, wherein R ,20 is hydroxy, alkyloxy or -OCH2OCH2CH2OCH3, and
R21 is hydroxy, -OCN, alkyloxy, heteroaryloxy having suitable substituent, -OCH2OCH2CH2OCH3, protected hydroxy, chloro, bromo, iodo, aminooxalyloxy, azide, p- tolyloxythiocarbonyloxy or R25R26CHCOO- (wherein R25 is optionally protected hydroxy as desired, or protected amino, and R26 is hydrogen atom or methyl) , or R20 and R21 in combination form an oxygen atom of epoxide ring; and n is 1 or 2. Particularly preferable tricyclo compounds (I) include, besides FK506, Ascomycin derivatives such- as halogenated derivative of *33-epi-chloro-33-desoxy Ascomycin described in Example 66a of EP-A-427680 and the like.
The tricyclo compound (I) and its pharmaceutically acceptable salt are nontoxic and pharmaceutically acceptable conventional salts, which are exemplified by salts with inorganic or organic base such as alkali metal salt (e.g., sodium salt, potassium salt and the like) , alkaline earth metal salt (e.g., calcium salt, magnesium salt and the like), . ammonium salt, and amine salt (e.g., triethylamine salt, N- benzyl-N-methylamine salt and the like) .
In the tricyclo compound of the present invention, conformers or one or more pairs of stereoisomers such as optical isomers and geometric isomers due to asymmetric carbon atom and double bond may be present. Such conformers or isomers are also encompassed in the present invention. In addition, the tricyclo compound can form solvates, which case is also encompassed in the present invention. Examples of preferable solvates include hydrates and ethanolates. In the present invention, the ocular inflammatory diseases include the ocular inflammatory diseases as expressed in connection with, or as a result of, uveitis, conjunctivitis, cyclitis, scleritis, episcleritis, optic neuritis, retrobulbar optic neuritis, keratitis, blepharitis, corneal ulcer,
conjunctival ulcer, etc.; the ocular inflammatory diseases caused by the ocular disorders such as dry eye, ocular infection, optic nerve disorder, etc.; the ocular inflammatory diseases caused by an ophthalmic operation; and the ocular inflammatory diseases caused by a physical injury to the eye. Also included in the inflammatory diseases in the present invention are the ocular inflammatory diseases of unknown cause, such as chronic nummular keratitis, Thygeson keratitis, progressive Mooren's ulcer, etc. The present invention also includes the treatment of symptoms caused by the ocular inflammatory diseases including itching, flare, edema, ulcer, etc.
The present agent for topical ophthalmic treatment shows the excellent ocular anti-inflammatory effects by . topically administering it in a low dose to the eye- of a human suffering from the ocular inflammatory diseaβes. Particularly, the present agent for topical ophthalmic treatment contains a tricyclo compound, as shown by the general formula (I), as the active ingredient in the concentration of 0.01% - 0.1%. Further, the present agent is effective even for a subject in whom conventional anti-inflammatory agents (e.g., steroid, cyclosporins, etc.) show no improving effect.
Furthermore, unlike steroid treatment, the present agent shows the ocular anti-inflammatory effects without bringing the intraocular pressure increase, thus* reducing the side effects caused by anti-inflammatory agents. Accordingly, the agent is effective even for a subject for. whom other anti- inflammatory agents cannot be used (e.g., steroid contraindication) . The term "treatment" used herein includes any means of control such as prevention, care, relief of the- condition, attenuation of the condition, arrest of progression, etc.
The compound of general formula (I) .used as' the active ingredient of the present invention is administered topically
to the eye in the forms of eye drops, eye ointment, etc.
In the case of administering a formulation, the formulation manufactured according to ordinary means can be administered. The form includes all the formulations for topical administration to the eye used in the ophthalmic field such as eye drops, eye ointment, etc. The eye drops are prepared by dissolving the active ingredient in a sterile aqueous solution such as saline, buffering solution, etc., or by combining powder compositions to be dissolved before use*. The eye ointment is prepared by mixing the active ingredient into a base. Such formulations can be prepared according to ordinary means .
Eye drops such as the ones as described in EP-A-0406791 are preferred. If desired, additives ordinarily used in the eye drops can be added. Such additives include isotonizing agents (e.g., sodium chloride, etc.), buffer agent (e.g., boric acid, sodium onohydrogen phosphate, sodium dihydrogen phosphate, etc.), preservatives (e.g., benzalkoniu chloride, benzethonium chloride, chlorobutanol, etc.), thickeners (e.g., sacσharide such as lactose, mannitol, maltose, etc.; e.g., hyaluronic acid or its salt such as sodium hyaluronate, potassium hyaluronate, etc.; e.g., mucopolysaccharide such as chondroitin sulfate, etc.; e.g., sodium polyacrylate, carboxyvinyl polymer, crosslinked polyacrylate, etc.). The disclosure of the above publication is incorporated herein by reference.
Mixing the active ingredient into the base ordinarily used for the eye ointment and formulating it according to ordinary methods can sterilely prepare the eye ointment. Examples of the base for the eye ointment include petrolatum, selen 50, Plastibase, macrogol, etc., but not limited thereto. Further, in order to' increase the hydrophilicity, a surface- active agent can be added. Regarding the eye ointment, the above-mentioned additives such as the preservatives, etc. can
be combined, if necessary.
The present agent for topical ophthalmic treatment can be formulated as a sterile unit dose type containing no preservatives . The amount of administration and the number of administration of the active ingredient used in the present invention vary according to the sex, age and weight of a human, symptoms to be treated, effects of treatment to be desired, administration methods, period of treatment, etc. Ordinarily, in the case of using the formulation of eye drops for an adult, the formulation containing 0.01% - 0.1% of the active ingredient can be instilled several times a day per eye, preferably one to six times, more preferably one to four times, several drops per time, preferably one to four drops. In the case of using the formulation of an eye ointment, the formulation containing 0.01% - 0.1% of the active ingredient can be applied several times a day, preferably one to six times, more preferably one to four times. The present agent for topical ophthalmic treatment is very useful especially for the reason that it shows sufficient effects by one to four times of ocular instillation or application.
In the present invention, the formulation can include one active ingredient only or a combination of two or more active ingredients . In a combination of plural active ingredients, their respective contents can be suitably increased or decreased in consideration of their effects, safety, etc.
Further, the present formulation can suitably include other pharmacologically active ingredients as far as they do not contradict the object of the present invention.
The further details of the present invention will follow with reference to the examples, which, however, are not intended to limit the present invention.
Example 1
Method 1
In a total of four groups each having 30 persons, FK506 eye drops (0.01%, 0.06% and 0.1%) were instilled in the respective experimental groups for once, and placebo was instilled, in the control group for once. Three hours after the ocular instillation, various foreign bodies (cat hair, cat dander, and pollens of a tree, ragweed or grass) were ocularly instilled in both the experimental groups and the control group, thus causing inflammations. Five minutes later, itching on the eye was graded according to five-rank scores (0 - 4) . The decreases from the score (baseline) in instilling only foreign bodies were calculated. These results are shown in Fig. 1. As shown in Fig. 1, the decreases of itching we're greater in the experimental groups instilled with 0.01%, 0.06% and 0.1% of FK506 eye drops than in the control . groups instilled with placebo. These results confirmed that the instillation o.f FK506 eye drops in a low dose of 0.01% - 0.1% shows the ocular anti-inflammatory effects. Example 2
FK506 was ocularly instilled in the subjects once a day for one week, and the same amount of placebo was ocularly instilled in the control group. At 16 hours after the final ocular instillation, various foreign bodies (cat hair, cat dander, and pollens of a tree, ragweed or grass) were ocularly instilled in both the experimental groups and the control group, thus causing the inflammations. Ten minutes later, conjunctiva! hyperemia and chemosis were graded according to five-rank scores (0 - 4) . The changes from the score
(baseline) in instilling only foreign bodies were calculated. These results are shown in Tables 1 and 2.
Table 1 conjunctival hyperemia
** p<0.01
Table 2 chemosis
** p<0.01
As shown in Tables 1 and 2, compared to the control . group instilled with placebo, the instillation of 0.1% FK506 eye drops clearly decreased the scores of both conjunctival hyperemia and chemosis . These results confirmed that the instillation of FK506 eye drops in a low dose shows the ocular anti-inflammatory effects (antiedemic effect and anti-flare effect) for at least 16 hours.
The following are the examples of the instillation of FK506 eye drops in a low dose in patients having various ocular inflammatory diseases. Example 3 ,
A patient suffering from progressive corneal ulcer caused by pemphigoid was instilled with 0.06% FK506 eye drops three times a day. As a result, significant improving effects were observed and such effects were maintained at 43 weeks later.
Example 4
A patient suffering from progressive Mooren' s ulcer was instilled with 0.06% FK506 eye drops three times a day. As a result, significant improving effects were observed and such effects were maintained at 41 weeks later. Example 5
A patient suffering from chronic nummular keratitis was instilled with 0.06% FK506 eye drops three times a day. As a. result, significant improving effects were observed within two weeks and such effects were maintained at 43 weeks later. Example β
A patient suffering from Thygeson keratitis, for whom no conventional therapy is available (the topical administration of corticosteroid shows no improving effect, or corticosteroid cannot be used for the topical or systemic administration) and the ocular instillation of cyclosporin A shows no improving effect, was instilled with 0.06% FK506 eye drops three times a day. As a result, significant improving effects were observed within three weeks and such effects were maintained at 41 weeks later. Example 7
A patient performed a penetrating keratoplasty and * having a history of steroid glaucoma and also having a history of chronic rejection despite the ocular instillation of cyclosporin A was instilled with 0.06% F 506 eye drops three times a day. As a result, the progression of inflammations caused by injury was arrested and such effects were maintained at 34 weeks later. Besides, no intraocular pressure increase was observed. Example 8
A patient suffering from blepharokeratoconjunctivitis, for whom no conventional therapy is available (the topical administration of corticosteroid shows no improving effect, or corticosteroid cannot be used for the topical or systemic
administration) and the ocular instillation of cyclosporin A shows no improving effect, was instilled with 0.06% FK506 eye drops three times a day. As a result, significant improving effects were observed within two weeks and such effects were maintained at 18 weeks later. Example 9
A patient performed a penetrating keratoplasty due to keratoconus and having a history of refractoriness to the topical cyclosporins A, for whom no conventional therapy is available (the topical administration of corticosteroid shows no improving effect, or corticosteroid cannot be used for the topical or systemic administration), was instilled with 0.06% FK506 eye drops three times a day. As a result, significant improving effects were observed and such effects were maintained at 25 weeks later.
Industrial applicability As shown in the foregoing examples 3 - .9, it was confirmed that the topical instillation of FK506 eye drops in a low dose in the eye of a human having various ocular inflammatory diseases shows the anti-inflammatory effects. It was further confirmed that the present agent for topical ophthalmic treatment is effective even for a subject in whom conventional anti-inflammatory agents show no improving effect (e.g., steroid, cyclosporins, etc.), and that the present agent shows the anti-inflammatory effects in a subject for whom other anti-inflammatory agents cannot be used (e.g.,. steroid contraindication).
This application is based on application No. 60/283,169 filed in United States of America, the content of which is incorporated hereinto by reference.
Claims (1)
1. A method for treating ocular inflammatory diseases, comprising topical administration of an agent for topical ophthalmic treatment comprising a tricyclo compound as shown by the following general formula (I) or its pharmaceutically, acceptable salt to the eye of a human in need of a treatment of ocular inflammatory diseases in the concentration of 0.01% - 0.1%:
ι o wherein adjacent pairs of R1 and R2, R3 and R4, and R5 and Re each independently a) consist of two adjacent hydrogen atoms, wherein R2 is optionally alkyl, or b) form another bond optionally between carbon atoms 15 binding with the members of said pairs;
R7 is hydrogen atom, hydroxy, protected hydroxy or alkyloxy, or may form oxo with R1;
R and R each independently show hydrogen, atom or hydroxy;
R is hydrogen atom, alkyl, alkyl substituted by one or
20 more hydroxy, alkenyl, alkenyl substituted by one or more hydroxy or alkyl substituted by oxo;
X is' oxo, (hydrogen atom, hydroxy) , (hydrogen atom,
hydrogen atom) , or a group of the formula -CH20-;
Y is oxo, (hydrogen atom, hydroxy) , (hydrogen atom, hydrogen atom) , or a group of the formula N-NRUR12 or N-OR13; Ru and R12 each independently show hydrogen atom, alkyl, aryl or tosyl;
R13, R14, R15, R16, R17, R18, R19, R22 and R23 each independently show hydrogen atom or alkyl;
R24 is an optionally substituted ring that may contain one or more hetero atom(s) ; and n is 1 or 2, in addition to the meaning noted above, Y, R10 and R23 may show, together with the carbon atom they bind with, a saturated or unsaturated 5 or 6-membered heterocyclic group containing nitrogen atom, sulfur atom and/or oxygen atom, the heterocyclic group being optionally substituted by one or more group (s) selected from alkyl, hydroxy, alkyloxy, benzyl, a group of the formula -CH2Se (CSH5) , and alkyl substituted by one or more hydroxy, or its pharmaceutically acceptable salt.
2. The method as described in Claim 1 wherein the tricyclo compound is FK506.
3. The method as described in Claim 1 wherein the topical administration to the eye is one to four times a day.
4. The method as described in Claim 1 wherein the agent for topical ophthalmic treatment is an eye drop or eye ointment.
5. The method as described in Claim 1 wherein the ocular inflammatory diseases are selected from a group consisting of uveitis, conjunctivitis, cyclitis, scleritis, episcleritis, optic neuritis, retrobulbar optic neuritis, keratitis, blepharitis, corneal ulcer, conjunctival ulcer and symptoms
caused by them; ocular inflammatory diseases caused by ocular disorders; ocular inflammatory diseases after an ophthalmic operation; and ocular inflammatory diseases caused by a physical injury.
6. The method as described in Claim 1 wherein the • treatment of the ocular inflammatory diseases is aimed at treating itching on the eye.
7. The method as described in Claim 1 wherein the treatment of the ocular inflammatory diseases is aimed at treating flare on the eye.
8. . The method as described in Claim 1 wherein the treatment of the ocular inflammatory diseases is aimed at treating edema on the eye .
9. The method as described in Claim 1 wherein the treatment of the ocular inflammatory diseases is aimed at 0 treating ulcer on the eye.
, 10. The method as described in Claim 1 comprising the administration to the human in whom other ocular anti- inflammatory agents show no improving effect.
11. The method as described in Claim 10 wherein the other ocular anti-inflammatory agents are cyclosporins and/or steroid drugs.
0 12. The method as described in Claim 1 comprising the administration to the human for whom other ocular anti- inflammatory agents cannot be used.
13. . The method as described in Claim 12 wherein the other
ocular anti-inflammatory agents are steroid drugs.
14. An agent for topical ophthalmic treatment of a human for ocular inflammatory diseases, comprising a tricyclo 5 compound as shown by the following general formula (I) or its pharmaceutically acceptable salt as an active ingredient • in the concentration of 0.01% - 0.1%:
wherein adjacent pairs of R1 and R2, R3 and R4, and Rs and Rs each independently o a) consist of two adjacent hydrogen atoms, wherein R2 is optionally alkyl, or b) form another bond optionally between carbon atoms binding with the members of said pairs;
R is hydrogen atom, hydroxy, protected hydroxy or alkyloxy, 5 ox may form oxo with R1;
R and R each independently show hydrogen atom or hydroxy; R10 is hydrogen atom, alkyl, alkyl substituted by one or more hydroxy, alkenyl, alkenyl substituted by one or more hydroxy or alkyl substituted by oxo; o X is oxo, (hydrogen atom, hydroxy) , (hydrogen atom, hydrogen atom) , or a group of the formula -CH20-;
Y is oxo, (hydrogen atom, hydroxy) , (hydrogen atom, hydrogen atom) , or a group of the formula N-NR11R12 or N-OR13;
R11 and R1^ each independently show hydrogen atom, alkyl, aryl or tosyl; R13,
R15, R16, R17, R1B, R19, R22 and R23 each independently show hydrogen atom or alkyl;
R24 is an optionally substituted ring that may contain one or more hetero. atom(s); and n is 1 or 2, in addition to the meaning noted above, Y, R10 and R23 may show, together with the carbon atom they bind with, a saturated or unsaturated 5 or 6-membered heterocyclic group containing nitrogen atom, sulfur atom and/or oxygen atom, the heterocyclic group being optionally substituted by one or more ' group (s) selected from alkyl, hydroxy, alkyloxy, benzyl, a group of the formula -CH2Se (CgH5) , and alkyl substituted by one or more hydroxy, or its pharmaceutically acceptable salt.
15. The agent as described in Claim 14 wherein the tricyclo compound is FK506.
16. The agent as described in Claim 14 wherein the topical ophthalmic treatment comprises administering the agent, one to four times a day to the eye.
17. The agent as described in Claim 14, which is an eye drop or eye ointment.
18. The agent as described in Claim 14 wherein the ocular inflammatory diseases are selected from a group consisting of uveitis, conjunctivitis, cyclitis, scleritis, episcleritis, optic neuritis, retrobulbar optic neuritis, keratitis, blepharitis, corneal ulcer, conjunctival ulcer and symptoms caused by them; ocular inflammatory diseases caused by ocular
disorders; ocular inflammatory diseases after an ophthalmic operation; and ocular inflammatory diseases caused by a physical injury.
19. The agent as described in Claim 14 wherein the topical ophthalmic treatment is aimed at treating itching on the eye.
20. The agent as described in Claim 14 wherein the topical ophthalmic treatment is aimed at treating flare on the eye.
21. The agent as described in Claim 14 wherein the topical ophthalmic treatment is aimed at treating edema on the eye.
22. The agent as described in Claim 14 wherein the topical ophthalmic treatment is aimed at treating ulcer on the eye.
23. The agent as described in Claim 14, which is used for administration to the human in whom other ocular anti- inflammatory agents show no improving effect.
2 . The agent as described in Claim 23 wherein the ocular anti-inflammatory agents are cyclosporins and/or steroid drugs ,
25. The agent as described in Claim 14, which is used, for administration to the human for whom other, ocular anti- inflammatory agents cannot be used.
26. The agent as described in Claim 25 wherein the ocular anti-inflammatory agents are cyclosporins and/or steroid drugs,
21 . A use of a tricyclo compound as shown by the following general formula (I) or its pharmaceutically acceptable salt for manufacturing an agent for topical ophthalmic treatment of a human for treating ocular inflammatory diseases
characterized in that said agent for treatment comprises said tricyclo compound in the concentration of 0.01% - 0.1%:
wherein adjacent pairs of R1 and R2, R3 ,and R4, and Rs and R6 each independently a) consist of two adjacent hydrogen atoms, wherein Rz is optionally alkyl, or b) form another bond optionally between carbon atoms binding with the members of said pairs;
R7 is hydrogen atom, hydroxy, protected hydroxy or alkyloxy, or may form oxo with R1; ■
RB and R each independently show hydrogen atom or hydroxy; R10 is hydrogen atom, alkyl, alkyl substituted by one or more hydroxy, alkenyl, alkenyl substituted by one or more hydroxy or alkyl substituted by oxo; X. is oxo, (hydrogen atom, hydroxy) , (hydrogen atom, hydrogen atom) , or a group of the formula -CH20-;
Y is oxo, (hydrogen atom, hydroxy) , (hydrogen atom, hydrogen atom) , or a group of the formula N-NRUR12 or N-OR13; Ru and R12 each independently show hydrogen atom, alkyl, aryl or tosyl;
R13, R16 , R15, R16, R17, R18, R19, R22 and R23 each
independently show hydrogen atom or alkyl;
R24 is an optionally substituted ring that may contain one or more hetero atom(s) ; and n is 1 or 2, in addition to the meaning noted above, Y, Rιπ and R23 may show, together with the carbon atom they bind with, a saturated or unsaturated 5 or 6-membered heterocyclic group containing nitrogen atom, sulfur atom and/or oxygen atom, the heterocyclic group being optionally substituted by one or more group (s) selected from alkyl, hydroxy, alkyloxy, benzyl, a group of the formula -CH2Se (CeHs) , and alkyl substituted by one or more hydroxy, or its pharmaceutically acceptable salt.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US60/283,169 | 2001-04-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AU2002248014A1 true AU2002248014A1 (en) | 2002-11-05 |
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