WO2012026491A1 - 多能性幹細胞の心筋分化促進剤 - Google Patents
多能性幹細胞の心筋分化促進剤 Download PDFInfo
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Definitions
- the present invention relates to an agent for promoting differentiation of pluripotent stem cells into cardiomyocytes, a method for inducing differentiation of pluripotent stem cells into cardiomyocytes, and a method for producing cardiomyocytes from pluripotent stem cells.
- the method for inducing differentiation of pluripotent stem cells is the key to the realization of regenerative medicine and the establishment of in vitro drug efficacy evaluation tests or drug safety tests.
- heart disease is currently the second leading cause of death among Japanese people, and is important for regenerative medicine and evaluation of heart disease efficacy.
- cardiomyocytes since there are many drugs that cause serious side effects such as heart failure and arrhythmia on the heart, there is a need for a uniform supply of cardiomyocytes that can be used in cardiotoxicity tests.
- END2 cells which are mouse-derived support cells, and human ES cells has been reported (Non-patent Document 1).
- a method for obtaining uniform cardiomyocytes with high efficiency and low cost is required in the fields of regenerative medicine and drug discovery.
- the present inventors examined the effect of promoting differentiation of monkey ES cells into cardiomyocytes for 9600 types of library compounds, and found that the low molecular compound N11474 has an effect of promoting myocardial differentiation. Furthermore, it has been found that the analog KY02111 obtained by the synthetic development of N11474 and its peripheral compounds have an effect of promoting myocardial differentiation, and the present invention has been completed.
- R 1 to R 5 each independently represent a hydrogen atom; a halogen atom; a hydroxyl group; a straight or branched alkoxy group having 1 to 5 carbon atoms; a straight chain having 1 to 5 carbon atoms that is unsubstituted or substituted with a halogen atom.
- a branched alkyl group a group —NR 12 R 13 (wherein R 12 and R 13 each independently represents a straight or branched alkyl group having 1 to 5 carbon atoms substituted with a hydrogen atom, an oxygen atom, an unsubstituted group or a halogen atom) Wherein two adjacent R 1 —R 5 together form —O—CH 2 —O— or —O— (CH 2 ) 2 —O—.
- R 6 to R 9 each independently represent a hydrogen atom; a halogen atom; a hydroxyl group; a linear or branched alkoxy group having 1 to 5 carbon atoms; and a 1 to 5 carbon atom substituted with a group —C (O) A.
- a straight-chain or branched alkoxy group (A is a saturated or unsaturated 5- or 6-membered ring which is unsubstituted or substituted with a straight-chain or branched alkyl group having 1 to 5 carbon atoms, and the ring is a nitrogen atom, an oxygen atom, And 1 or 2 atoms independently selected from a sulfur atom); a straight-chain or branched alkyl group having 1 to 5 carbon atoms which is unsubstituted or substituted with a halogen atom; a group —NR 12 R 13 (R 12 and R 13 are each independently hydrogen atom, an oxygen atom, an unsubstituted or halogen atom substituted is a straight-chain or branched alkyl group having 1 to 5 carbon atoms) is, wherein R 6 -O-C are two adjacent together among -R 9 2 -O- or -O- (CH 2) may form a 2 -O-, R 10 to R 11 are each independently
- the present invention provides a method for inducing differentiation of pluripotent stem cells into cardiomyocytes, comprising culturing the pluripotent stem cells in a medium containing the myocardial differentiation promoter.
- the present invention provides a method for producing cardiomyocytes from pluripotent stem cells, comprising culturing the pluripotent stem cells in a medium containing the myocardial differentiation promoter.
- the invention provides: Formula (I): [Where: R 1 , R 4 and R 5 are each independently a hydrogen atom; a halogen atom; a hydroxyl group; a linear or branched alkoxy group having 1 to 5 carbon atoms; an unsubstituted or substituted carbon atom having 1 to 5 carbon atoms.
- a group —NR 12 R 13 (wherein R 12 and R 13 are each independently a straight chain having 1 to 5 carbon atoms substituted by a hydrogen atom, an oxygen atom, an unsubstituted or halogen atom) Or a branched alkyl group).
- R 2 and R 3 are straight or branched alkoxy groups having 1 to 5 carbon atoms, or R 2 and R 3 together represent —O—CH 2 —O— or —O— (CH 2 ).
- R 6 to R 9 each independently represent a hydrogen atom; a halogen atom; a hydroxyl group; a linear or branched alkoxy group having 1 to 5 carbon atoms; and a 1 to 5 carbon atom substituted with a group —C (O) A.
- a straight-chain or branched alkoxy group (A is a saturated or unsaturated 5- or 6-membered ring which is unsubstituted or substituted with a straight-chain or branched alkyl group having 1 to 5 carbon atoms, and the ring is a nitrogen atom, an oxygen atom, And 1 or 2 atoms independently selected from a sulfur atom); a straight-chain or branched alkyl group having 1 to 5 carbon atoms which is unsubstituted or substituted with a halogen atom; a group —NR 12 R 13 (R 12 and R 13 are each independently hydrogen atom, an oxygen atom, an unsubstituted or halogen atom substituted is a straight-chain or branched alkyl group having 1 to 5 carbon atoms) is, wherein R Two adjacent groups of 6- R 9 together form —O—CH 2 -O- or -O- (CH 2 ) 2 -O- may be formed, R 10 to R 11 are each independently
- pluripotent stem cells can be induced to differentiate into cardiomyocytes without using feeder cells, and pure cardiomyocytes can be obtained.
- cardiomyocytes can be produced by inducing differentiation into cardiomyocytes with higher efficiency and lower cost than known methods.
- the present invention relates to mass production of homogeneous and mature human cardiomyocytes used for high-throughput screening for QT prolongation tests important as drug safety tests, or for evaluation of drug efficacy against heart diseases, and transplanted cardiomyocytes for heart diseases etc.
- myocardial differentiation promoting agent of the present invention is particularly useful in the production of Further, there is no molecular structure homology between the myocardial differentiation promoting agent of the present invention and the previously reported myocardial differentiation promoting factor, and the myocardial differentiation promoting agent of the present invention is a completely new type of myocardial differentiation promoting factor. Therefore, it is expected that the differentiation efficiency can be further enhanced by the combined use with other myocardial differentiation promoting factors.
- a screening screening method for a myocardial differentiation promoting substance Screening system and detection of N11474. Structure-activity relationship between KY02111 and its peripheral compounds. Comparison of myocardial differentiation promoting effects of cytokines, G-CSF, nitrobin, N11474, KY02111, and KY01042. Synergistic effect of nitrobin and N11474 in promoting myocardial differentiation. Synergistic effect of nitrobin and KY02111 in promoting myocardial differentiation. N11474 myocardial differentiation promoting effect on human ES cells (increase in GFP expression). Compound (1) having an effect of promoting myocardial differentiation. Myocardial differentiation promoting effect of each compound. Effect of KY02111 on gene expression.
- R 1 to R 5 each independently represent a hydrogen atom; a halogen atom; a hydroxyl group; a straight or branched alkoxy group having 1 to 5 carbon atoms; a straight chain having 1 to 5 carbon atoms that is unsubstituted or substituted with a halogen atom.
- R 12 and R 13 are each independently a straight chain of 1 to 5 carbon atoms substituted with a hydrogen atom, an oxygen atom, or an unsubstituted or halogen atom, or Where two adjacent R 1 —R 5 together form —O—CH 2 —O— or —O— (CH 2 ) 2 —O—.
- R 6 to R 9 each independently represent a hydrogen atom; a halogen atom; a hydroxyl group; a linear or branched alkoxy group having 1 to 5 carbon atoms; and a 1 to 5 carbon atom substituted with a group —C (O) A.
- a straight-chain or branched alkoxy group (A is a saturated or unsaturated 5- or 6-membered ring which is unsubstituted or substituted with a straight-chain or branched alkyl group having 1 to 5 carbon atoms, and the ring is a nitrogen atom, an oxygen atom, And 1 or 2 atoms independently selected from a sulfur atom); a straight-chain or branched alkyl group of 1 to 5 carbon atoms which is unsubstituted or substituted with a halogen atom; or a group —NR 12 R 13 (R 12 and R 13 each independently represents a hydrogen atom, an oxygen atom, or a linear or branched alkyl group having 1 to 5 carbon atoms which is unsubstituted or substituted with a halogen atom), Although in two adjacent of R 6 -R 9 together O-CH 2 -O- or -O- (CH 2) may form a 2 -O-, R 10 to R 11 are each independently
- linear or branched alkoxy group having 1 to 5 carbon atoms examples include methoxy group, ethoxy group, propoxy group, isopropoxy group, butoxy group, isobutoxy group, sec-butoxy group, tert-butoxy group, and pentyloxy group. Can be mentioned.
- Examples of the linear or branched alkyl group having 1 to 5 carbon atoms include a methyl group, an ethyl group, a propyl group, an isopropyl group, a butyl group, an isobutyl group, a sec-butyl group, a tert-butyl group, and a pentyl group. .
- linear or branched acyl group having 1 to 5 carbon atoms examples include formyl group, acetyl group, propionyl group, butyryl group, isobutyryl group, valeryl group, and isovaleryl group.
- each of R 1 to R 5 independently represents a hydrogen atom; a halogen atom; a hydroxyl group; a linear or branched alkoxy group having 1 to 5 carbon atoms; or an unsubstituted or substituted carbon atom having 1 carbon atom.
- R 1 to R 5 independently represents a hydrogen atom; a halogen atom; a hydroxyl group; a linear or branched alkoxy group having 1 to 5 carbon atoms; or an unsubstituted or substituted carbon atom having 1 carbon atom.
- R 2 and R 3 are preferably straight-chain or branched alkoxy groups having 1 to 5 carbon atoms, or together, —O—CH 2 —O— or —O— (CH 2 ) 2 —. O- is formed. More preferably, R 2 and R 3 are a methoxy group, an ethoxy group, or a propoxy group, and most preferably a methoxy group or an ethoxy group.
- R 1 , R 4 and R 5 are preferably hydrogen atoms.
- R 6 to R 9 each independently represent a hydrogen atom; a halogen atom; a hydroxyl group; a linear or branched alkoxy group having 1 to 5 carbon atoms; an unsubstituted or substituted carbon atom having 1 to 5 carbon atoms; Or a group —NR 12 R 13 (wherein R 12 and R 13 each independently represents a hydrogen atom, an oxygen atom, or an unsubstituted or substituted carbon atom having 1 to 5 carbon atoms) Where two adjacent R 6 —R 9 together are —O—CH 2 —O— or —O— (CH 2 ) 2 —O - May be formed.
- R 6 and R 9 are preferably each independently a hydrogen atom; a halogen atom; a hydroxyl group; a linear or branched alkoxy group having 1 to 5 carbon atoms; or an unsubstituted or substituted carbon atom having 1 to 5 carbon atoms.
- 5 is a linear or branched alkyl group, and more preferably a hydrogen atom.
- R 7 represents a hydrogen atom; a halogen atom; a hydroxyl group; a linear or branched alkoxy group having 1 to 5 carbon atoms; a linear or branched group having 1 to 5 carbon atoms substituted with a group —C (O) A.
- An alkoxy group (A is a saturated or unsaturated 5- or 6-membered ring which is unsubstituted or substituted by a linear or branched alkyl group having 1 to 5 carbon atoms, and the ring is formed from a nitrogen atom, an oxygen atom, and a sulfur atom; 1 or 2 atoms independently selected); a linear or branched alkyl group of 1 to 5 carbon atoms which is unsubstituted or substituted with a halogen atom; or a group —NR 12 R 13 (R 12 and R 13 are each independently a hydrogen atom, an oxygen atom, or a linear or branched alkyl group having 1 to 5 carbon atoms which is unsubstituted or substituted with a halogen atom, and R 8 is Hydrogen atom; halogen atom; hydroxyl group; carbon number 1 5 straight or branched alkoxy group; or unsubstituted or a straight-chain or branched alkyl group of
- R 7 is a linear alkoxy group having 1 to 5 carbon atoms substituted with a group —C (O) A, and the group —C (O) A is bonded to the terminal carbon atom of the alkoxy group. is doing.
- A contains at least one nitrogen atom, and such A includes pyrrolidinyl, imidazolidinyl, pyrazolidinyl, pyrrolyl, imidazolyl, which is unsubstituted or substituted with a linear or branched alkyl group having 1 to 5 carbon atoms.
- Pyrazolyl, thiazolyl, isothiazolyl, oxazolyl, isoxazolyl, piperidinyl, piperazinyl, morpholinyl, pyridyl, pyrimidinyl, pyrazinyl, and pyridazinyl groups are examples of the group.
- A is a piperidinyl group, piperazinyl group, or morpholinyl group that is unsubstituted or substituted with a linear or branched alkyl group having 1 to 5 carbon atoms.
- A is a piperidin-1-yl group, piperazin-1-yl group, or morpholin-4-yl group which is unsubstituted or substituted with a linear or branched alkyl group having 1 to 5 carbon atoms. is there.
- R 10 and R 11 are preferably a hydrogen atom.
- X is an oxygen atom; a sulfur atom; a group —NR 15 (wherein R 15 is a hydrogen atom, a linear or branched alkyl group having 1 to 5 carbon atoms, a linear or branched acyl group having 1 to 5 carbon atoms). Is). X is preferably a sulfur atom.
- n is an integer from 0 to 4. In another preferred embodiment, n is an integer from 1 to 6, an integer from 1 to 4, or 2 or 3.
- the myocardial differentiation promoter of the present invention comprises a compound selected from the following or a salt thereof: KY010104 T61164 KY02111 KY02114 KY01045 KY01040 KY02109 KY010104 KY01043 KY01046 PB2852 N11474 PB2572 PB2570 KY02104 SO087 SO102 SO096 SO094
- the compounds of the present invention can be prepared by known methods (J. Med. Chem., 1965, 8 (5), pp 734-735) (included herein by reference) or according to the methods described in the Examples. Can be synthesized.
- the term “pluripotent stem cell” means pluripotency capable of differentiating into all cells constituting an adult and self-replication capable of maintaining the pluripotency even after cell division. It means a cell having the ability.
- the “pluripotent stem cell” includes embryonic stem cells (ES cells), embryonic germ cells (EG cells), and induced pluripotent stem cells (iPS cells).
- the species of “pluripotent stem cells” is not particularly limited, but is preferably a mammal, more preferably a rodent or a primate.
- the present invention is particularly suitable for monkey or human pluripotent stem cells.
- ES cells are pluripotent stem cells derived from early embryos, and can be established from the inner cell mass of blastocysts or epiblasts of early embryos after implantation.
- ES cells include humans (Thomson J. A. et al., Science 282: 1145-1147 (1998), Biochem Biophys Res Commun. 345 (3), 926-32 (2006); primates such as rhesus monkeys and marmosets (Thomson J. A. et al., Proc. Natl. Acad. Sci. USA 92: 7844-7848 (1995); Thomson J. A. et al., Biol. Reprod.
- EG cells are pluripotent stem cells derived from primordial germ cells.
- human EG cells (Shamblott, et al., Proc. Natl. Acad. Sci USA 92: 7844-7848 (1995)) (this book by reference) Included in the specification).
- iPS cell means a pluripotent stem cell derived from a cell other than a pluripotent stem cell such as a somatic cell or a tissue stem cell.
- Methods for producing iPS cells include, for example, WO2007 / 069666, WO2009 / 006930, WO2009 / 006997, WO2009 / 007852, WO2008 / 118820, Cell Stem Cell 3 (5): 568-574 (2008), Cell Stem Cell 4 (5 ): 381-384 (2009), Nature 454: 646-650 (2008), Cell 136 (3): 411-419 (2009), Nature Biotechnology 26: 1269-1275 (2008), Cell Stem Cell 3: 475- 479 (2008), Nature Cell Biology 11: 197-203 (2009), Cell 133 (2): 250-264 (2008), Cell 131 (5): 861-72 (2007), Science 318 (5858): 1917 -20 (2007), which are hereby incorporated by reference.
- cells produced by any method are included in the “i
- the myocardial differentiation promoter of the present invention is added to the myocardial differentiation medium of pluripotent stem cells so that the final concentration of the active ingredient is, for example, 0.5 to 20 ⁇ M.
- the myocardial differentiation medium is not particularly limited as long as it is a composition generally used for myocardial differentiation of pluripotent stem cells.
- myocardial differentiation medium based on IMDM medium (the following are used in the examples) ), DMEM-based myocardial differentiation medium (DMEM / F12 medium (Sigma) 200 ml, fetal bovine serum (GIBCO) 50 ml, MEM non-essential amino acid solution (Sigma) 2.5 ml, penicillin-streptomycin (GIBCO) 2.5 ml, 200 mM L-glutamine 2.5 ml, 2-mercaptoethanol) or StemPro-34SFM (GIBCO) + BMP4 (10 ng / ml) is exemplified.
- DMEM-based myocardial differentiation medium DMEM / F12 medium (Sigma) 200 ml, fetal bovine serum (GIBCO) 50 ml, MEM non-essential amino acid solution (Sigma) 2.5 ml, penicillin-streptomycin (GIBCO) 2.5 ml, 200 mM L-glutamine 2.5 ml, 2-
- the timing of addition of the differentiation promoting agent of the present invention can be appropriately changed depending on the type of pluripotent stem cells used and the composition of the myocardial differentiation medium.
- monkey or human ES cells are based on the IMDM medium described in the examples.
- When culturing in the myocardial differentiation medium it may be added 6 to 14 days after the start of culture in the myocardial differentiation medium.
- the myocardial differentiation promoting agent of the present invention may be used together with another myocardial differentiation promoting factor such as nitrobin, cytokine (combination of bFGF, BMP4, VEGF, DKK1 and activin A), Wnt signal inhibitor and the like.
- the “myocardial differentiation promoting factor” in the present invention includes all substances having an effect of promoting myocardial differentiation. Therefore, the myocardial differentiation promoting agent of the present invention is also one of the “myocardial differentiation promoting factors”.
- the “Wnt signal inhibitor” in the present invention means a substance that inhibits the Wnt signal pathway, and examples thereof include known compounds such as IWP2, XAV939, and IWR1, and proteins such as G-CSF, IGFBP4, and Dkk1.
- the myocardial differentiation promoter of the present invention is also a useful “Wnt signal inhibitor” in the present invention. That is, the mode of using the myocardial differentiation promoter of the present invention and the Wnt signal inhibitor in combination includes a mode of using a plurality of types of myocardial differentiation promoter of the present invention.
- another myocardial differentiation promoting factor used in combination has a different mechanism of action from the myocardial differentiation promoting agent of the present invention, and examples thereof include IWP2 and XAV939.
- the timing of addition of another myocardial differentiation promoting factor can be appropriately determined by those skilled in the art depending on the myocardial differentiation promoting factor used.
- the present invention also provides a myocardial differentiation promoting kit comprising the myocardial differentiation promoting agent of the present invention.
- the kit of the present invention may contain another myocardial differentiation promoting factor in addition to the myocardial differentiation promoting agent of the present invention.
- the myocardial differentiation promoting agent of the present invention and another myocardial differentiation promoting factor may be stored in separate containers or in the same container.
- the present invention also provides a method for inducing differentiation of cardiomyocytes and a method for producing cardiomyocytes.
- the method of the present invention is characterized by culturing pluripotent stem cells in a medium containing the myocardial differentiation promoter of the present invention.
- the method of the present invention comprises culturing pluripotent stem cells in a myocardial differentiation medium, and applying the myocardial differentiation promoter of the present invention as the final active ingredient on the 6th to 14th day after the start of culture in the myocardial differentiation medium. It is carried out by adding to a concentration of 0.5 to 20 ⁇ M and confirming the differentiation of pluripotent stem cells into cardiomyocytes on the 18th day of culture. Differentiation into cardiomyocytes can be confirmed by, for example, the number of beating cardiomyocytes and the expression level of ⁇ -MHC gene which is a myocardial differentiation marker.
- myocardial differentiation promoting agent of the present invention in addition to the myocardial differentiation promoting agent of the present invention, another myocardial differentiation promoting factor may be added to the medium.
- the cardiomyocytes obtained by the method of the present invention can be used for in vitro drug safety tests or as transplanted cardiomyocytes for heart diseases and the like.
- R 1 , R 4 and R 5 are each independently a hydrogen atom; a halogen atom; a hydroxyl group; a linear or branched alkoxy group having 1 to 5 carbon atoms; an unsubstituted or substituted carbon atom having 1 to 5 carbon atoms. Or a group —NR 12 R 13 (wherein R 12 and R 13 each independently represents a hydrogen atom, an oxygen atom, or an unsubstituted or substituted carbon atom having 1 to 5 carbon atoms) A straight-chain or branched alkyl group).
- R 2 and R 3 are straight or branched alkoxy groups having 1 to 5 carbon atoms, or R 2 and R 3 together represent —O—CH 2 —O— or —O— (CH 2 ).
- R 6 to R 9 each independently represent a hydrogen atom; a halogen atom; a hydroxyl group; a linear or branched alkoxy group having 1 to 5 carbon atoms; and a 1 to 5 carbon atom substituted with a group —C (O) A.
- a straight-chain or branched alkoxy group (A is a saturated or unsaturated 5- or 6-membered ring which is unsubstituted or substituted with a straight-chain or branched alkyl group having 1 to 5 carbon atoms, and the ring is a nitrogen atom, an oxygen atom, And 1 or 2 atoms independently selected from a sulfur atom); a straight-chain or branched alkyl group of 1 to 5 carbon atoms which is unsubstituted or substituted with a halogen atom; or a group —NR 12 R 13 (R 12 and R 13 are each independently a hydrogen atom, an oxygen atom, or a linear or branched alkyl group having 1 to 5 carbon atoms which is unsubstituted or substituted with a halogen atom), in two adjacent of R 6 -R 9 is together - -CH 2 -O- or -O- (CH 2) may form a 2 -O-, R 10 to R 11 are each
- R 1 , R 4 and R 5 are each independently a hydrogen atom; a halogen atom; a hydroxyl group; a linear or branched alkoxy group having 1 to 5 carbon atoms; or unsubstituted or substituted with a halogen atom A straight-chain or branched alkyl group having 1 to 5 carbon atoms, preferably a hydrogen atom.
- R 2 and R 3 are a methoxy group, an ethoxy group, or a propoxy group.
- R 6 and R 9 are each independently a hydrogen atom; a halogen atom; a hydroxyl group; a linear or branched alkoxy group having 1 to 5 carbon atoms; or an unsubstituted or substituted carbon atom having 1 carbon atom.
- R 7 represents a hydrogen atom; a halogen atom; a hydroxyl group; a linear or branched alkoxy group having 1 to 5 carbon atoms; a linear or branched group having 1 to 5 carbon atoms substituted with a group —C (O) A.
- An alkoxy group (A is a saturated or unsaturated 5- or 6-membered ring which is unsubstituted or substituted by a linear or branched alkyl group having 1 to 5 carbon atoms, and the ring is formed from a nitrogen atom, an oxygen atom, and a sulfur atom; 1 or 2 atoms independently selected); a linear or branched alkyl group of 1 to 5 carbon atoms which is unsubstituted or substituted with a halogen atom; or a group —NR 12 R 13 (R 12 and R 13 are each independently a hydrogen atom, an oxygen atom, or a linear or branched alkyl group having 1 to 5 carbon atoms which is unsubstituted or substituted with a halogen atom, and R 8 is Hydrogen atom; halogen atom; hydroxyl group; carbon number 1 5 straight or branched alkoxy group; or unsubstituted or a straight-chain or branched alkyl group of
- R 7 is a linear alkoxy group having 1 to 5 carbon atoms substituted with a group —C (O) A, and the group —C (O) A is bonded to the terminal carbon atom of the alkoxy group. is doing.
- A contains at least one nitrogen atom, and such A includes pyrrolidinyl, imidazolidinyl, pyrazolidinyl, pyrrolyl, imidazolyl, which is unsubstituted or substituted with a linear or branched alkyl group having 1 to 5 carbon atoms.
- Pyrazolyl, thiazolyl, isothiazolyl, oxazolyl, isoxazolyl, piperidinyl, piperazinyl, morpholinyl, pyridyl, pyrimidinyl, pyrazinyl, and pyridazinyl groups are examples of the group.
- A is a piperidinyl group, piperazinyl group, or morpholinyl group that is unsubstituted or substituted with a linear or branched alkyl group having 1 to 5 carbon atoms.
- A is a piperidin-1-yl group, piperazin-1-yl group, or morpholin-4-yl group which is unsubstituted or substituted with a linear or branched alkyl group having 1 to 5 carbon atoms. is there.
- R 10 and R 11 are hydrogen atoms.
- X is a sulfur atom.
- n is an integer from 0 to 4. In another preferred embodiment, n is an integer from 1 to 6, an integer from 1 to 4, or 2 or 3.
- the compounds of the invention are KY02114 SO087 SO102 SO096 SO094 It is.
- GFP green fluorescent protein
- monkey ES cells were seeded in a 6-well plate, and N11474, KY02111, KY01042 (final concentration of 10 ⁇ M each), G-CSF (final concentration of 5 ng / ml) were cultured on days 4 to 10 Nitrobin (final concentration 5 ⁇ M) was cultured on days 8 to 14, and cytokines (bFGF, BMP4, VEGF, DKK1, activin A) were cultured on days 1 to 14 (final concentrations of 5 ng / ml, 10 ng / ml, 10 ng / ml each). ml, 150 ng / ml, 3 ng / ml), and GFP expression was observed on the 14th day of culture.
- cytokines bFGF, BMP4, VEGF, DKK1, activin A
- nitrobin and KY02111 the synergistic effect on the myocardial differentiation promoting effect was examined.
- KY02111 (5 ⁇ M) was administered on the 4th to 8th day of culture, nitrobin (1 ⁇ M) on the 8th to 12th day of culture, and GFP expression was observed on the 14th day of culture.
- the increase in the expression level of GFP was about 3 times and about 30 times in the case of nitrobin or KY02111 administered alone compared to the control (DMSO), respectively, but the combination of nitrobin and KY02111 was about It was 50 times (FIG. 5-2, lower left graph).
- the ratio of the number of GFP colonies was 22% and 73% when nitrobin or KY02111 was administered alone, respectively, but almost all (100%) colonies were positive for GFP fluorescence by the combined use of nitrobin and KY02111.
- Fig. 5-2 lower right graph
- the proportion of beating colonies was about 16% and 30% in the case of nitrobin or KY02111 alone, respectively, but 58% by the combined use of nitrobin and KY02111 (FIG. 5-2). , Bottom right graph).
- KY02111 (5 ⁇ M) was administered for 3 days from 6 to 9 days after myocardial differentiation culture, and beating myocardial colonies were analyzed on the 9th day.
- CMK6.4 monkey ES cells
- Monkey ES cells were seeded in a 6-well plate, and KY02111, N11474 (final concentration of 10 ⁇ M each), IWP2 (final concentration of 10 ⁇ M), XAV939 (final concentration of 10 ⁇ M), IWR1 (final concentration of 10 ⁇ M), G-CSF (final concentration 5 ng / ml), IGFBP4 (final concentration 1 ⁇ g / ml), Dkk1 (final concentration 150 ng / ml), combination of cytokines (bFGF, BMP4, VEGF, DKK1, activin A on days 1-14 ) (Final concentrations of 5 ng / ml, 10 ng / ml, 10 ng / ml, 150 ng / ml, 3 ng / ml) were administered, and GFP expression was observed on the 14th day of culture.
- the known Wnt signal inhibitor also showed a myocardial differentiation promoting effect, but KY02111 had the strongest myocardial
- BIO Effect of Wnt signal activator on myocardial differentiation promoting effect
- BIO As a Wnt signal activator on the myocardial differentiation promoting effect of KY02111, XAV939, and IWP2 was examined. Similar to (8) above, monkey ES cells were administered BIO (final concentration 5 ⁇ M) together with KY02111, XAV939, or IWP2 on the 4th to 10th day of culture, and GFP expression was observed on the 14th day of culture. As a result, BIO suppressed the myocardial differentiation effect of XAV939 and IWP2, but not the effect of KY02111 (FIG. 11).
- KY02111 Reaction was performed in the same manner as described above using 3- (3,4-dimethoxyphenyl) propanoyl chloride (100 mg, 0.42 mmol) and 2-amino-6-chlorobenzothiazole (78 mg, 0.42 mmol) as substrates. 113 mg of 2- (3- (3,4-dimethoxyphenyl) propanamide) -6-chlorobenzothiazole was obtained in a yield of 72%.
- KY02109 2- (3,4-Dimethoxyphenyl) acetyl chloride (100 mg, 0.51 mmol) and 2-amino-6-chlorobenzothiazole (94 mg, 0.51 mmol) were used as substrates and reacted in the same manner as above.
- 153 mg of-(2- (3,4-dimethoxyphenyl) acetamido) -6-chlorobenzothiazole was obtained in a yield of 83%.
- KY010104 Reaction was performed in the same manner as described above using 3- (3,4-dimethoxyphenyl) propanoyl chloride (100 mg, 0.5 mmol) and 2-amino-6-nitrobenzothiazole (105 mg, 0.57 mmol) as substrates. 138 mg of 2- (3- (3,4-dimethoxyphenyl) propanamide) -6-nitrobenzothiazole was obtained in a yield of 71%.
- KY01046 Reaction was performed in the same manner as described above using 5- (3,4-dimethoxyphenyl) pentanoyl chloride (30 mg, 0.13 mmol) and 2-amino-6-nitrobenzothiazole (25 mg, 0.13 mmol) as substrates.
- 2- (5- (3,4-dimethoxyphenyl) pentanamide) -6-nitrobenzothiazole 38 mg, yield 70% was obtained.
- KY02104 2- (3,4-Dimethoxyphenyl) acetyl chloride (100 mg, 0.51 mmol) and 2-amino-6-fluorobenzothiazole (86 mg, 0.51 mmol) were used as substrates and reacted in the same manner as above. 157 mg of-(2- (3,4-dimethoxyphenyl) acetamido) -6-fluorobenzothiazole was obtained in a yield of 89%.
- reaction solution was diluted with ethyl acetate and washed with saturated aqueous sodium hydrogen carbonate solution, distilled water, and saturated aqueous sodium chloride solution. After drying with sodium sulfate, the solvent was distilled off. Ethanol was added to the residue and refluxed, and recrystallization was performed to obtain 320 mg (yield 35%) of 2- (3- (3,4-dimethoxyphenyl) propanamide) -6-bromobenzothiazole.
- reaction solution was diluted with ethyl acetate and washed with saturated aqueous sodium hydrogen carbonate solution, distilled water, and saturated aqueous sodium chloride solution. After drying with sodium sulfate, the solvent was distilled off. Ethanol was added to the residue and the mixture was refluxed and recrystallized to obtain 447 mg of ethyl 4-((2- (3- (3,4-dimethoxyphenyl) propanamido) benzothiazol-6-yl) oxy) butanoate, yield Obtained at 76%.
- reaction solution was diluted with ethyl acetate and washed with saturated aqueous sodium hydrogen carbonate solution, distilled water, and saturated aqueous sodium chloride solution. After drying with sodium sulfate, the solvent was distilled off. Ethanol was added to the residue and the mixture was refluxed and recrystallized to give 3- (3,4-dimethoxyphenyl) -N- (6- (4-morpholino-4-oxobutoxy) benzothiazol-2-yl) propanamide. Obtained in 50 mg, 43% yield.
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Abstract
Description
式(I):
R1-R5は、各々独立して、水素原子;ハロゲン原子;水酸基;炭素数1~5の直鎖又は分岐アルコキシ基;非置換又はハロゲン原子で置換された炭素数1~5の直鎖又は分岐アルキル基;基-NR12R13(R12及びR13は、各々独立して、水素原子、酸素原子、非置換又はハロゲン原子で置換された炭素数1~5の直鎖または分岐アルキル基である)である、ここでR1-R5のうち隣接する2つが一緒になって-O-CH2-O-または-O-(CH2)2-O-を形成していてもよい、
R6-R9は、各々独立して、水素原子;ハロゲン原子;水酸基;炭素数1~5の直鎖又は分岐アルコキシ基;基-C(O)Aで置換された炭素数1~5の直鎖又は分岐アルコキシ基(Aは、非置換又は炭素数1~5の直鎖または分岐アルキル基で置換された飽和または不飽和5または6員環であり、該環は窒素原子、酸素原子、及び硫黄原子から独立に選択される1または2個の原子を含んでいてもよい);非置換又はハロゲン原子で置換された炭素数1~5の直鎖又は分岐アルキル基;基-NR12R13(R12及びR13は、各々独立して、水素原子、酸素原子、非置換又はハロゲン原子で置換された炭素数1~5の直鎖または分岐アルキル基である)である、ここでR6-R9のうち隣接する2つが一緒になって-O-CH2-O-または-O-(CH2)2-O-を形成していてもよい、
R10-R11は、各々独立して、水素原子;炭素数1~5の直鎖又は分岐アルキル基である、
Xは、-CR14(R14は、水素原子、ハロゲン原子、水酸基、炭素数1~5の直鎖又は分岐アルコキシ基、非置換又はハロゲン原子で置換された炭素数1~5の直鎖又は分岐アルキル基である);酸素原子;硫黄原子;セレン原子;基-NR15(R15は、水素原子、炭素数1~5の直鎖又は分岐アルキル基、炭素数1~5の直鎖又は分岐アシル基である)である、および
nは、0から6の整数である]
の化合物またはその塩を含む、多能性幹細胞の心筋分化促進剤を提供する。
式(I):
R1、R4及びR5は、各々独立して、水素原子;ハロゲン原子;水酸基;炭素数1~5の直鎖又は分岐アルコキシ基;非置換又はハロゲン原子で置換された炭素数1~5の直鎖又は分岐アルキル基;基-NR12R13(R12及びR13は、各々独立して、水素原子、酸素原子、非置換又はハロゲン原子で置換された炭素数1~5の直鎖又は分岐アルキル基である)である、
R2及びR3は、炭素数1~5の直鎖又は分岐アルコキシ基である、又はR2及びR3は、一緒になって-O-CH2-O-または-O-(CH2)2-O-を形成している、
R6-R9は、各々独立して、水素原子;ハロゲン原子;水酸基;炭素数1~5の直鎖又は分岐アルコキシ基;基-C(O)Aで置換された炭素数1~5の直鎖又は分岐アルコキシ基(Aは、非置換又は炭素数1~5の直鎖または分岐アルキル基で置換された飽和または不飽和5または6員環であり、該環は窒素原子、酸素原子、及び硫黄原子から独立に選択される1または2個の原子を含んでいてもよい);非置換又はハロゲン原子で置換された炭素数1~5の直鎖又は分岐アルキル基;基-NR12R13(R12及びR13は、各々独立して、水素原子、酸素原子、非置換又はハロゲン原子で置換された炭素数1~5の直鎖又は分岐アルキル基である)である、ここでR6-R9のうち隣接する2つが一緒になって-O-CH2-O-又は-O-(CH2)2-O-を形成していてもよい、
R10-R11は、各々独立して、水素原子;炭素数1~5の直鎖又は分岐アルキル基である、
Xは、酸素原子;硫黄原子;基-NR15(R15は、水素原子、炭素数1~5の直鎖又は分岐アルキル基、炭素数1~5の直鎖又は分岐アシル基である)である、および
nは、0から6の整数である、但し、nが1又は2のとき、R7はCl及びメトキシ基ではなく、R2はメトキシ基ではない]
を有する化合物またはその塩を提供する。
式(I):
R1-R5は、各々独立して、水素原子;ハロゲン原子;水酸基;炭素数1~5の直鎖又は分岐アルコキシ基;非置換又はハロゲン原子で置換された炭素数1~5の直鎖又は分岐アルキル基;又は基-NR12R13(R12及びR13は、各々独立して、水素原子、酸素原子、又は非置換又はハロゲン原子で置換された炭素数1~5の直鎖または分岐アルキル基である)である、ここでR1-R5のうち隣接する2つが一緒になって-O-CH2-O-または-O-(CH2)2-O-を形成していてもよい、
R6-R9は、各々独立して、水素原子;ハロゲン原子;水酸基;炭素数1~5の直鎖又は分岐アルコキシ基;基-C(O)Aで置換された炭素数1~5の直鎖又は分岐アルコキシ基(Aは、非置換又は炭素数1~5の直鎖または分岐アルキル基で置換された飽和または不飽和5または6員環であり、該環は窒素原子、酸素原子、及び硫黄原子から独立に選択される1または2個の原子を含んでいてもよい);非置換又はハロゲン原子で置換された炭素数1~5の直鎖又は分岐アルキル基;又は基-NR12R13(R12及びR13は、各々独立して、水素原子、酸素原子、又は非置換又はハロゲン原子で置換された炭素数1~5の直鎖または分岐アルキル基である)である、ここでR6-R9のうち隣接する2つが一緒になって-O-CH2-O-または-O-(CH2)2-O-を形成していてもよい、
R10-R11は、各々独立して、水素原子;又は炭素数1~5の直鎖又は分岐アルキル基である、
Xは、-CR14(R14は、水素原子、ハロゲン原子、水酸基、炭素数1~5の直鎖又は分岐アルコキシ基、非置換又はハロゲン原子で置換された炭素数1~5の直鎖又は分岐アルキル基である);酸素原子;硫黄原子;セレン原子;又は基-NR15(R15は、水素原子、炭素数1~5の直鎖又は分岐アルキル基、又は炭素数1~5の直鎖又は分岐アシル基である)である、および
nは、0から6の整数である]。
の化合物またはその塩を含む、多能性幹細胞の心筋分化促進剤を提供する。
KY01041
式(I):
R1、R4及びR5は、各々独立して、水素原子;ハロゲン原子;水酸基;炭素数1~5の直鎖又は分岐アルコキシ基;非置換又はハロゲン原子で置換された炭素数1~5の直鎖又は分岐アルキル基;又は基-NR12R13(R12及びR13は、各々独立して、水素原子、酸素原子、又は非置換又はハロゲン原子で置換された炭素数1~5の直鎖又は分岐アルキル基である)である、
R2及びR3は、炭素数1~5の直鎖又は分岐アルコキシ基である、又はR2及びR3は、一緒になって-O-CH2-O-または-O-(CH2)2-O-を形成している、
R6-R9は、各々独立して、水素原子;ハロゲン原子;水酸基;炭素数1~5の直鎖又は分岐アルコキシ基;基-C(O)Aで置換された炭素数1~5の直鎖又は分岐アルコキシ基(Aは、非置換又は炭素数1~5の直鎖または分岐アルキル基で置換された飽和または不飽和5または6員環であり、該環は窒素原子、酸素原子、及び硫黄原子から独立に選択される1または2個の原子を含んでいてもよい);非置換又はハロゲン原子で置換された炭素数1~5の直鎖又は分岐アルキル基;又は基-NR12R13(R12及びR13は、各々独立して、水素原子、酸素原子、又は非置換又はハロゲン原子で置換された炭素数1~5の直鎖又は分岐アルキル基である)である、ここでR6-R9のうち隣接する2つが一緒になって-O-CH2-O-又は-O-(CH2)2-O-を形成していてもよい、
R10-R11は、各々独立して、水素原子;炭素数1~5の直鎖又は分岐アルキル基である、
Xは、酸素原子;硫黄原子;又は基-NR15(R15は、水素原子、炭素数1~5の直鎖又は分岐アルキル基、又は炭素数1~5の直鎖又は分岐アシル基である)である、および
nは、0から6の整数である、但し、nが1又は2のとき、R7はCl及びメトキシ基ではなく、R2はメトキシ基ではない]
を有する化合物またはその塩を提供する。
図1に示すように、サルES細胞の心筋分化を促進する物質の探索スクリーニングを実施した。サルES細胞株(カニクイザルCMK6.4株)に、心筋分化マーカーであるα-MHC遺伝子のプロモーターの制御下で緑色蛍光タンパク質(GFP)を発現するベクターを導入し、96ウェルプレート(Greiner/655090:96穴FIAブラックプレート)上に5.0×103細胞/ウェルにて播種し、IMDM培地を基本とした心筋分化培地(IMDM培地(Sigma l3390)200ml、ウシ胎児血清(GIBCO 10099-141)50ml、MEM non-essential amino acid solution (Sigma M7145)2.5ml、ペニシリン-ストレプトマイシン(GIBCO 15140)2.5ml、200mM L-グルタミン 2.5ml、2-メルカプトエタノール(Sigma M7522) 2μl、5N NaOH 255μlを混合したもの)で14日間培養した。培養後6~14日に、9600種類のライブラリー化合物を、1ウェルあたり1化合物(約1~5μM)投与した。培養後14日に、HCS(high contents screening)システム(モレキュラーデバイス/MetaMorph イメージングシステム)を用いてGFP発現量を測定した。その結果、低分子化合物N11474を投与したウェルのGFP発現量が高い値を示し、N11474が心筋分化促進効果を有することが明らかとなった(図2)。
心筋分化促進効果を有することが示されたN11474の類縁体KY02111およびその周辺化合物を合成し、これらの心筋分化促進効果を検討した。サルES細胞を6ウェルプレート(旭硝子/ 5816-006 :Ezview カルチャープレート)に4.0×105細胞/ウェルにて播種し、培養4~10日目に最終濃度が10μMとなるように各化合物を投与し、培養14日目にGFP発現を観察した。その結果、化合物の分子構造に対応して、GFP発現量の顕著な増加が見られた(図3)。また、心筋分化促進効果は、ジメトキシフェニル基に結合する炭素鎖の長さと相関することが示唆された(図3)。
心筋分化促進因子として報告されているサイトカイン(bFGF、BMP4、VEGF、DKK1、アクチビンA)、顆粒球コロニー刺激因子(G-CSF)、および本発明者らが心筋分化促進効果を有することを見出したニトロビンと、本発明の化合物の心筋分化促進効果をGFP発現量の増加で比較した。上記(2)と同様にして、6ウェルプレートにサルES細胞を播種し、培養4~10日目に、N11474、KY02111、KY01042(最終濃度各10μM)、G-CSF(最終濃度5ng/ml)、培養8~14日目にニトロビン(最終濃度5μM)を、培養1~14日目にサイトカイン(bFGF、BMP4、VEGF、DKK1、アクチビンA)(最終濃度各5ng/ml、10ng/ml、10ng/ml、150ng/ml、3ng/ml)を投与し、培養14日目にGFP発現を観察した。その結果、N11474、KY02111、およびKY01042は、サイトカイン(約300%)やG-CSF(約250%)、ニトロビン(約400%)よりもはるかに高いGFP発現量の増加(N11474=1000%、KY02111=7400%、KY01042=7000%)を示した(図4)。
ニトロビンとN11474について、心筋分化促進効果における相乗効果を調べた。N11474(10μM)を培養4~10日目に、ニトロビン(3μM)を培養8~14日目に投与し、培養14日目にGFP発現を観察した。その結果、GFP発現量の増加は、ニトロビンまたはN11474の単独投与の場合約3~4倍であったのに対して、ニトロビンとN11474を併用することで約9倍となった(図5-1、左グラフ)。また、GFPコロニー数の割合は、ニトロビンまたはN11474の単独投与の場合約3~4割の増加であったのに対して、ニトロビンとN11474の併用により約8割の増加となった(図5-1、右グラフ)。
N11474およびKY02111について、各種ES/iPS細胞での心筋分化促進効果を、GFP発現量と拍動コロニー数を指標に確認した。ヒトES細胞株(Kh-1株)(Suemori, H., et al., Efficient establishment of human embryonic stem cell lines and long-term maintenance with stable karyotype by enzymatic bulk passage. Biochem Biophys Res Commun. 345(3), 926-32 (2006))(引用により本明細書に含まれる)を6ウェルプレート(旭硝子/ 5816-006 :Ezview カルチャープレート)に1.2×106細胞/ウェルにて播種し、BMP4(10ng/ml)を培養後0~4日目まで投与し、N11474(10μM)またはKY02111(5μM)を培養後4~14日目まで投与し、22日間培養した。ヒトiPS細胞株(253G1、IMR90-1、IMR90-4、RCHIPC0003)(Takahashi, K., et al., Induction of pluripotent stem cells from adult human fibroblasts by defined factors. Cell. 131(5), 861-72 (2007); Yu, J., et al., Induced pluripotent stem cell lines derived from human somatic cells. Science. 318(5858), 1917-20 (2007).)(これら文献は引用により本明細書に含まれる)については、ヒトES細胞と同じ方法で心筋分化培養を行った。マウスES細胞(R1)からの心筋分化方法は、文献( Transient inhibition of BMP signaling by Noggin induces cardiomyocyte differentiation of mouse embryonic stem cells.Yuasa S, Itabashi Y, Koshimizu U, Tanaka T, Sugimura K, Kinoshita M, Hattori F, Fukami S, Shimazaki T, Ogawa S, Okano H, Fukuda K.Nat Biotechnol. 2005 May;23(5):607-11. Epub 2005 May 1. Erratum in: Nat Biotechnol. 2005 Jul;23(7):897. )(引用により本明細書に含まれる)に従って行った。心筋分化培養後6~9日目までの3日間、KY02111(5μM)を投与し、9日目に拍動心筋コロニーを解析した。サルES細胞(CMK6.4)については、上記(2)と同様にして心筋分化培養を行った。
上記(2)と同様にして、さらに幾つかの周辺化合物が心筋分化促進効果を有することを見出した(図7)。
本発明の化合物の作用機序を調べるため、ヒトiPS細胞を上記(1)記載の心筋分化培地へ播種し、培養3日目にDMSOまたはKY02111(10μM)を添加し、添加後12時間および24時間の遺伝子発現をDNAアレイにより調べた。その結果、以下の遺伝子の発現がKY02111の添加により低下することがわかった:(12時間後最も発現が低下した遺伝子から順に)HOXA1、MSGN1、NKD1、T、TNFRSF11B、DKK1、DKK4、CDX2、MSX1、NODAL、FGF4、PAPPA、PRRX1、LRAT、CYP1B1、SLC34A2、AXIN2、LGL1、SP5、MIXL1、APCDD1、DSEL。TCF/LEF転写因子認識配列を用いたプロモーター解析を行ったところ、これら遺伝子にはWntシグナル経路の下流で機能する遺伝子が多く含まれていることがわかった。これら遺伝子の一部(MSGN1、HOXA1、T、Dkk1、FGF4)について、定量的PCR(qPCR)により発現を確認したところ、いずれの遺伝子についてもDNAアレイと同様の結果が得られた(図8)。
上記(2)と同様にして、KY02111およびN11474と、既知のWntシグナル阻害剤(IWP2、XAV939、IWR1)および心筋分化促進効果が知られるタンパク質(G-CSF、IGFBP4、Dkk1、サイトカイン(bFGF、BMP4、VEGF、DKK1、アクチビンAの組み合わせ))との心筋分化促進効果を比較した。6ウェルプレートにサルES細胞を播種し、培養4~10日目に、KY02111、N11474(最終濃度各10μM)、IWP2(最終濃度10μM)、XAV939(最終濃度10μM)、IWR1(最終濃度10μM)、G-CSF(最終濃度5ng/ml)、IGFBP4(最終濃度1μg/ml)、Dkk1(最終濃度150ng/ml)、培養1~14日目にサイトカイン(bFGF、BMP4、VEGF、DKK1、アクチビンAの組み合わせ)(最終濃度各5ng/ml、10ng/ml、10ng/ml、150ng/ml、3ng/ml)を投与し、培養14日目にGFP発現を観察した。その結果、既知のWntシグナル阻害剤も心筋分化促進効果を示したが、KY02111の心筋分化効果が最も強かった(図10)。
KY02111、XAV939、およびIWP2の心筋分化促進効果に対するWntシグナル活性化剤であるBIOの効果を検討した。上記(8)と同様にして、サルES細胞に、培養4~10日目にKY02111、XAV939、またはIWP2とともにBIO(最終濃度5μM)を投与し、培養14日目にGFP発現を観察した。その結果、BIOはXAV939およびIWP2の心筋分化効果を抑制したが、KY02111の効果は抑制しなかった(図11)。同様の結果が、上記(5)記載のようにヒトiPS細胞(IMR90-1)を用いて拍動コロニー数を調べた場合にも得られた(図11)。これらの結果は、KY02111の心筋分化効果の作用機序が既知のWntシグナル阻害剤とは異なることを示唆する。
心筋分化促進における、KY02111と既知のWntシグナル阻害剤であるXAV939またはIWP2との相乗効果について検討した。上記(8)と同様にして、サルES細胞に培養4~10日目にKY02111、XAV939、およびIWP2を投与し、培養14日目にGFP発現を観察した。その結果、KY02111とXAV939とに相乗効果が観察された(図12)。また、上記(8)記載のようにヒトiPS細胞(IMR90-1)を用いて拍動コロニー数を調べたところ、KY02111とXAV939、KY02111とIWP2との間に相乗効果が観察された(図12-2)。以上の結果は、KY02111の作用機序が既知のWntシグナル阻害剤とは異なることを支持し、両者を併用するとさらに強い心筋分化促進効果が得られることを示す。
上記(2)と同様にして、さらに幾つかの心筋分化促進効果を有する化合物を見出した(図13)。
KY01041
3,4-ジメトキシベンゾイルイルクロリド(100mg,0.55mmol)とトリエチルアミン(83,0μl.6mmol)を塩化メチレン(500μl)に溶かし、2-アミノ-6-クロロベンゾチアゾール(105mg,0.57mmol)を加え一時間、室温にて撹拌した。反応終了後、塩化メチレンに希釈し、飽和食塩水にて洗浄した。硫酸マグネシウムで乾燥した後に溶媒を留去した。残渣にエタノールを加え、70度に加熱し、溶解させた後に室温に戻すことで再結晶を行い、2-(3,4-ジメトキシベンズアミド)-6-クロロベンゾチアゾールを130mg、収率68%で得た。
1H NMR (CDCl3): δ10.15(s, 1H), 7.83 (d, J= 1.8 Hz, 1H), 7.63-7.45 (m, 3H), 7.36 (dd, J= 1.8, 8.7 Hz, 1H), 6.91 (d, J= 8.2 Hz, 1H), 3.96 (s, 3H), 3.94 (s, 3H)
MS(ESI) Found: 349 [M+H]+
3-(3,4-ジメトキシフェニル)プロパノイルクロリド(100mg,0.42mmol)と2-アミノ-6-クロロベンゾチアゾール(78mg,0.42mmol)を基質に用いて上記と同様に反応を行い、2-(3-(3,4-ジメトキシフェニル)プロパンアミド)-6-クロロベンゾチアゾールを113mg、収率72%で得た。
1H NMR (CDCl3): δ9.41(s, 1H), 7.79 (d, J= 2.9 Hz, 1H), 7.62 (d, J= 11.7 Hz, 1H), 7.37 (dd, J= 2.6, 11.4 Hz, 1H), 6.80-6.67 (m, 3H), 3.85 (s, 3H), 3.82 (s, 3H), 3.03 (t, J= 9.9 Hz, 2H), 2.77 (t, J= 9.9 Hz, 2H)
MS(ESI) Found: 399 [M+H]+
4-(3,4-ジメトキシフェニル)ブタノイルクロリド(100mg,0.41mmol)と2-アミノ-6-クロロベンゾチアゾール(76mg,0.41mmol)を基質に用いて上記と同様に反応を行い、2-(4-(3,4-ジメトキシフェニル)ブタンアミド)-6-クロロベンゾチアゾールを121mg、収率75%で得た。
1H NMR (CDCl3): δ9.15(s, 1H), 7.79 (d, J= 2.9 Hz, 1H), 7.64 (d, J= 11.3 Hz, 1H), 7.39 (dd, J= 2.6, 11.4 Hz, 1H), 6.80-6.68 (m, 3H), 3.87 (s, 3H), 3.84 (s, 3H), 2.67 (t, J= 9.9 Hz, 2H), 2.48 (t, J= 9.9 Hz, 2H), 2.09 (m, 2H)
MS(ESI) Found: 413 [M+H]+
5-(3,4-ジメトキシフェニル)ペンタノイルクロリド(30mg,0.13mmol)と2-アミノ-6-クロロベンゾチアゾール(23mg,0.13mmol)を基質に用いて上記と同様に反応を行い、2-(5-(3,4-ジメトキシフェニル)ペンタンアミド)-6-クロロベンゾチアゾールを39mg、収率75%で得た。
1H NMR (CDCl3): δ8.91 (s, 1H), 7.79 (d, J= 8.7 Hz, 1H), 7.66 (d, J= 8.7 Hz, 1H), 7.49 (dd, J= 2.3, 8.7 Hz, 1H), 6.79 (d, J= 7.8 Hz, 1H), 6.71 (d, J= 7.8 Hz, 1H) 6.70 (s, 1H), 3.87(s, 3H), 3.86 (s, 3H), 2.62 (t, J= 7.4 Hz, 2H), 2.52 (t, J= 7.3 Hz, 2H), 1.80 (m, 2H), 1.72 (m, 2H)
MS(ESI) Found: 405 [M+H]+
3,4-ジメトキシベンゾイルイルクロリド(100mg,0.5mmol)と2-アミノ-6-ニトロベンゾチアゾール(105mg,0.57mmol)を基質に用いて上記と同様に反応を行い、2-(3,4-ジメトキシベンズアミド)-6-ニトロベンゾチアゾールを100mg、収率56%で得た。
1H NMR (CDCl3): δ10.15(s, 1H), 8.80 (d, J= 2.3 Hz, 1H), 8.31 (dd, J= 2.3, 9.2 Hz, 1H), 7.73 (d, J= 9.2 Hz, 1H), 7.63-7.47 (m, 2H), 6.95 (d, J= 8.7 Hz, 1H), 3.98 (s, 3H), 3.97 (s, 3H)
MS(ESI) Found: 360 [M+H]+
2-(3,4-ジメトキシフェニル)アセチルクロリド(100mg,0.51mmol)と2-アミノ-6-クロロベンゾチアゾール(94mg,0.51mmol)を基質に用いて上記と同様に反応を行い、2-(2-(3,4-ジメトキシフェニル)アセトアミド)-6-クロロベンゾチアゾールを153mg、収率83%で得た。
1H NMR (CDCl3): δ8.91(s, 1H), 8.75 (s, 1H), 8.31 (dd, J= 12.1 Hz, 1H), 7.77 (d, J= 11.7 Hz, 1H), 7.00-6.70 (m, 3H), 3.92 (s, 3H), 3.90 (s, 3H), 3.86 (s, 2H)
MS(ESI) Found: 396 [M+H]+
3-(3,4-ジメトキシフェニル)プロパノイルクロリド(100mg,0.5mmol)と2-アミノ-6-ニトロベンゾチアゾール(105mg,0.57mmol)を基質に用いて上記と同様に反応を行い、2-(3-(3,4-ジメトキシフェニル)プロパンアミド)-6-ニトロベンゾチアゾールを138mg、収率71%で得た。
1H NMR (CDCl3): δ9.29(s, 1H), 8.75 (d, J= 1.8 Hz, 1H), 8.31 (dd, J= 2.3, 9.2 Hz, 1H), 7.77 (d, J= 9.2 Hz, 1H), 6.80 (d, J= 8.7 Hz, 1H), 6.75 (d, J= 8.7 Hz, 1H), 6.74 (s, 1H), 3.85 (s, 3H), 3.84 (s, 3H), 3.06 (t, J= 7.3 Hz, 2H), 2.83 (t, J= 7.3 Hz, 2H)
MS(ESI) Found: 388 [M+H]+
4-(3,4-ジメトキシフェニル)ブタノイルクロリド(55mg,0.25mmol)と2-アミノ-6-ニトロベンゾチアゾール(50mg,0.25mmol)を基質に用いて上記と同様に反応を行い、2-(4-(3,4-ジメトキシフェニル)ブタンアミド)-6-ニトロベンゾチアゾールを65mg、収率66%で得た。
1H NMR (CDCl3): δ8.75 (d, J= 2.3 Hz, 1H), 8.29 (dd, J= 2.3, 8.7 Hz, 1H), 7.70 (d, J= 8.7 Hz, 1H), 6.75 (d, J= 8.7 Hz, 1H), 6.67 (s, 1H), 6.66 (d, J= 8.7 Hz, 1H), 3.83 (s, 3H), 3.83 (s, 3H), 2.66 (t, J= 7.4 Hz, 2H), 2.54 (t, J= 7.3 Hz, 2H), 2.11 (m, 2H)
MS(ESI) Found: 402 [M+H]+
5-(3,4-ジメトキシフェニル)ペンタノイルクロリド(30mg,0.13mmol)と2-アミノ-6-ニトロベンゾチアゾール(25mg,0.13mmol)を基質に用いて上記と同様に反応を行い、2-(5-(3,4-ジメトキシフェニル)ペンタンアミド)-6-ニトロベンゾチアゾールを38mg、収率70%で得た。
1H NMR (CDCl3): δ8.94 (s, 1H), 8.75 (d, J= 2.3 Hz, 1H), 8.32 (dd, J= 2.3, 9.2 Hz, 1H), 7.81 (d, J= 9.2 Hz, 1H), 6.80 (d, J= 7.8 Hz, 1H), 6.72 (d, J= 7.8 Hz, 1H) 6.71 (s, 1H), 3.88 (s, 3H), 3.86 (s, 3H), 2.63 (t, J= 7.4 Hz, 2H), 2.56 (t, J= 7.3 Hz, 2H), 1.82 (m, 2H), 1.73 (m, 2H)
MS(ESI) Found: 416 [M+H]+
2-(3,4-ジメトキシフェニル)アセチルクロリド(100mg,0.51mmol)と2-アミノ-6-フルオロベンゾチアゾール(86mg,0.51mmol)を基質に用いて上記と同様に反応を行い、2-(2-(3,4-ジメトキシフェニル)アセトアミド)-6-フルオロベンゾチアゾールを157mg、収率89%で得た。
1H NMR (CDCl3): δ9.14(s, 1H), 7.64 (dd, J= 6.2, 12.1 Hz, 1H), 7.50 (dd, J= 3.6, 11.0 Hz, 1H), 7.14 (ddt, J= 3.7, 12.1 Hz, 1H), 6.90-6.78 (m, 3H), 3.90 (s, 3H), 3.87 (s, 3H), 3.80 (s, 2H)
MS(ESI) Found: 369 [M+H]+
2-アミノ-6-ブロモベンゾチアゾール(500mg,2.18mmol)、3-(3,4-ジメトキシフェニル)プロピオン酸(505mg,2.40mmol)、O-(6-クロロベンゾトリアゾール-1-イル)-N,N,N’,N’-テトラメチルウロニウムヘキサフルオロホスファート(1.09g,2.63mmol)、およびN,N’-ジイソプロピルエチルアミン(419μl,2.41mmol)のN,N’-ジメチルホルムアミド(5ml)溶液を室温にて終夜攪拌した。反応終了後、反応溶液を酢酸エチルにて希釈し、飽和炭酸水素ナトリウム水溶液、蒸留水、飽和塩化ナトリウム水溶液にて洗浄した。硫酸ナトリウムで乾燥した後に溶媒を留去した。残渣にエタノールを加えて還流し、再結晶を行い、2-(3-(3,4-ジメトキシフェニル)プロパンアミド)-6-ブロモベンゾチアゾールを320mg、収率35%で得た。
1H NMR (DMSO-d6): δ12.45 (s, 1H), 8.25 (d, J = 1.8 Hz, 1H), 7.66 (d, J = 8.4 Hz, 1H), 7.56 (dd, J = 1.8, 8.4 Hz, 1H), 6.87-6.83 (m, 2H), 6.77-6.73 (m, 1H), 3.71 (s, 3H), 3.70 (s, 3H), 2.88 (t, J = 7.0 Hz, 2H), 2.79 (t, J = 7.0 Hz, 2H)
2-アミノ-6-クロロベンゾチアゾール(55mg,0.298mmol)および3-(3,4-ジメトキシフェニル)プロピオン酸(80mg,0.357mmol)を基質に用いてSO087と同様に反応を行い,N-(6-クロロベンゾチアゾール-2-イル)-3-(4-エトキシ-3-メトキシフェニル)プロパンアミドを40mg、収率34%で得た。
1H NMR (DMSO-d6): δ12.44 (s, 1H), 8.11 (d, J = 2.2 Hz, 1H), 7.71 (d, J = 8.8 Hz, 1H), 7.44 (dd, J = 2.2, 8.8 Hz, 1H), 6.90-6.82 (m, 2H), 6.72 (dd, J = 1.8, 7.0 Hz), 3.94 (q, J = 7.0 Hz, 2H), 3.72 (s, 3H), 2.91-2.85 (m, 2H), 2.82-2.75 (m, 2H), 1.28 (t, J = 7.0 Hz, 3H)
2-アミノ-6-ヒドロキシベンゾチアゾール(400mg,2.41mmol)のN,N’-ジメチルホルムアミド(7ml)溶液をアルゴン雰囲気下、氷冷攪拌中、水素化ナトリウム(60%)(106mg,2.65mmol)を加えて30分攪拌後、4-ブロモ酪酸エチル(521μl,3.62mmol)を加えて室温にて終夜攪拌した。反応終了後、反応溶液を酢酸エチルにて希釈し、飽和塩化アンモニウム水溶液、飽和塩化ナトリウム水溶液にて洗浄した。硫酸ナトリウムで乾燥した後に溶媒を留去し、エチル 4-((2-アミノベンゾチアゾール-6-イル)オキシ)ブタノエートを372mg、収率55%で得た。
1H NMR (DMSO-d6): δ12.20 (s, 1H), 7.60 (d, J = 8.8 Hz, 1H), 7.55 (d, J = 2.6 Hz, 1H), 7.01 (dd, J = 2.6, 8.8 Hz, 1H), 6.86-6.83 (m, 2H), 6.75 (dd, J = 1.8, 8.1 Hz), 4.03 (t, J = 6.2 Hz, 2H), 3.71 (s, 3H), 3.70 (s, 3H), 3.56-3.53 (m, 4H), 3.46-3.42 (m, 4H), 2.87 (t, J = 7.0 Hz), 2H), 2.75 (t, J = 7.0 Hz, 2H), 2.51-2.46 (m, 2H), 1.96 (t, J = 7.0 Hz, 2H)
4-((2-(3-(3,4-ジメトキシフェニル)プロパンアミド)ベンゾチアゾール-6-イル)オキシ)ブタン酸(80mg,0.180mmol)および1-メチルピペラジン(21.8μl,0.198mmol)を基質に用いてSO094と同様に反応を行い、3-(3,4-ジメトキシフェニル)-N-(6-(4-(4-メチルピペラジン-1-イル)-4-オキソブトキシ)ベンゾチアゾール-2-イル)プロパンアミドを39mg、収率41%で得た。
1H NMR (DMSO-d6): δ12.20 (br s, 1H), 7.54 (d, J = 8.8 Hz, 1H), 7.48 (d, J = 2.6Hz, 1H), 6.96 (dd, J = 2.6, 8.8 Hz, 1H), 6.86-6.82 (m, 2H), 6.73 (dd, J = 1.8, 8.1 Hz, 1H), 4.01 (t, J = 6.2 Hz, 2H), 3.71 (s, 3H), 3.69 (s, 3H), 3.45-3.41 (m, 4H), 2.86 (t, J = 7.7 Hz, 2H), 2.70 (t, J = 7.7 Hz, 2H), 2.50-2.45 (m, 2H), 2.29-2.20 (m, 4H), 2.15 (s, 3H), 1,94 (t, J = 7.0 Hz, 2H)
Claims (26)
- 式(I):
R1-R5は、各々独立して、水素原子;ハロゲン原子;水酸基;炭素数1~5の直鎖又は分岐アルコキシ基;非置換又はハロゲン原子で置換された炭素数1~5の直鎖又は分岐アルキル基;又は基-NR12R13(R12及びR13は、各々独立して、水素原子、酸素原子、又は非置換又はハロゲン原子で置換された炭素数1~5の直鎖または分岐アルキル基である)である、ここでR1-R5のうち隣接する2つが一緒になって-O-CH2-O-または-O-(CH2)2-O-を形成していてもよい、
R6-R9は、各々独立して、水素原子;ハロゲン原子;水酸基;炭素数1~5の直鎖又は分岐アルコキシ基;基-C(O)Aで置換された炭素数1~5の直鎖又は分岐アルコキシ基(Aは、非置換又は炭素数1~5の直鎖または分岐アルキル基で置換された飽和または不飽和5または6員環であり、該環は窒素原子、酸素原子、及び硫黄原子から独立に選択される1または2個の原子を含んでいてもよい);非置換又はハロゲン原子で置換された炭素数1~5の直鎖又は分岐アルキル基;又は基-NR12R13(R12及びR13は、各々独立して、水素原子、酸素原子、又は非置換又はハロゲン原子で置換された炭素数1~5の直鎖または分岐アルキル基である)である、ここでR6-R9のうち隣接する2つが一緒になって-O-CH2-O-または-O-(CH2)2-O-を形成していてもよい、
R10-R11は、各々独立して、水素原子;又は炭素数1~5の直鎖又は分岐アルキル基である、
Xは、-CR14(R14は、水素原子、ハロゲン原子、水酸基、炭素数1~5の直鎖又は分岐アルコキシ基、又は非置換又はハロゲン原子で置換された炭素数1~5の直鎖又は分岐アルキル基である);酸素原子;硫黄原子;セレン原子;又は基-NR15(R15は、水素原子、炭素数1~5の直鎖又は分岐アルキル基、又は炭素数1~5の直鎖又は分岐アシル基である)である、および
nは、0から6の整数である]
の化合物またはその塩を含む、多能性幹細胞の心筋分化促進剤。 - R6-R9が、各々独立して、水素原子;ハロゲン原子;水酸基;炭素数1~5の直鎖又は分岐アルコキシ基;非置換又はハロゲン原子で置換された炭素数1~5の直鎖又は分岐アルキル基;又は基-NR12R13(R12及びR13は、各々独立して、水素原子、酸素原子、又は非置換又はハロゲン原子で置換された炭素数1~5の直鎖または分岐アルキル基である)である、ここでR6-R9のうち隣接する2つが一緒になって-O-CH2-O-または-O-(CH2)2-O-を形成していてもよい、
請求項1の心筋分化促進剤。 - R1-R5が、各々独立して、水素原子;ハロゲン原子;水酸基;炭素数1~5の直鎖又は分岐アルコキシ基;又は非置換又はハロゲン原子で置換された炭素数1~5の直鎖又は分岐アルキル基である、ここでR1-R5のうち隣接する2つが一緒になって-O-CH2-O-または-O-(CH2)2-O-を形成していてもよい、および
Xが、酸素原子;硫黄原子;基-NR15(R15は、水素原子、炭素数1~5の直鎖又は分岐アルキル基、又は炭素数1~5の直鎖又は分岐アシル基である)である、
請求項2の心筋分化促進剤。 - R2及びR3が、炭素数1~5の直鎖又は分岐アルコキシ基である、又はR2及びR3が、一緒になって-O-CH2-O-または-O-(CH2)2-O-を形成している、
R6及びR9が、各々独立して、水素原子;ハロゲン原子;水酸基;炭素数1~5の直鎖又は分岐アルコキシ基;又は非置換又はハロゲン原子で置換された炭素数1~5の直鎖又は分岐アルキル基である、および
R7が、水素原子;ハロゲン原子;水酸基;炭素数1~5の直鎖又は分岐アルコキシ基;非置換又はハロゲン原子で置換された炭素数1~5の直鎖又は分岐アルキル基;又は基-NR12R13(R12及びR13は、各々独立して、水素原子、酸素原子、又は非置換又はハロゲン原子で置換された炭素数1~5の直鎖又は分岐アルキル基である)である、
R8が、水素原子;ハロゲン原子;水酸基;炭素数1~5の直鎖又は分岐アルコキシ基;又は非置換又はハロゲン原子で置換された炭素数1~5の直鎖又は分岐アルキル基である、
又は、R7及びR8が、一緒になって-O-CH2-O-または-O-(CH2)2-O-を形成している、
請求項3の心筋分化促進剤。 - R1、R4、R5、R6、及びR9が水素原子である、
R2及びR3が、メトキシ基、エトキシ基、又はプロポキシ基である、および
R10及びR11が、水素原子である、
請求項4の心筋分化促進剤。 - Xが、硫黄原子である、および
nが、0から4の整数である、
請求項5の心筋分化促進剤。 - R1、R4、R5、R6、R8、及びR9が、各々独立して、水素原子;ハロゲン原子;水酸基;炭素数1~5の直鎖又は分岐アルコキシ基;又は非置換又はハロゲン原子で置換された炭素数1~5の直鎖又は分岐アルキル基である、
R2及びR3が、炭素数1~5の直鎖又は分岐アルコキシ基である、又はR2及びR3が、一緒になって-O-CH2-O-または-O-(CH2)2-O-を形成している、
R7が、基-C(O)Aで置換された炭素数1~5の直鎖又は分岐アルコキシ基(Aは、非置換又は炭素数1~5の直鎖または分岐アルキル基で置換された飽和または不飽和5または6員環であり、該環は窒素原子、酸素原子、及び硫黄原子から独立に選択される1または2個の原子を含んでいてもよい)である、および
Xが、酸素原子;硫黄原子;基-NR15(R15は、水素原子、炭素数1~5の直鎖又は分岐アルキル基、又は炭素数1~5の直鎖又は分岐アシル基である)である、
請求項1の心筋分化促進剤。 - R1、R4、R5、R6、R8、及びR9が、水素原子である、
R2及びR3が、メトキシ基、エトキシ基、又はプロポキシ基である、
R10及びR11が、水素原子である、
Xが、硫黄原子である、
Aが、非置換又は炭素数1~5の直鎖または分岐アルキル基で置換された、ピペリジニル基、ピペラジニル基、又はモルホリニル基である、および
nが、0から4の整数である、
請求項7の心筋分化促進剤。 - 多能性幹細胞が哺乳類である、請求項1~9のいずれかの心筋分化促進剤。
- 多能性幹細胞が霊長類である、請求項10の心筋分化促進剤。
- 別の心筋分化促進因子と併用される、請求項1~11のいずれかの心筋分化促進剤。
- 別の心筋分化促進因子が、ニトロビン;bFGF、BMP4、VEGF、DKK1、およびアクチビンAの組み合わせ;またはWntシグナル阻害剤である、請求項12の心筋分化促進剤。
- 請求項1~11のいずれかの心筋分化促進剤を含む、心筋分化促進用キット。
- さらに別の心筋分化促進因子を含む、請求項14のキット。
- 請求項1~13のいずれかの心筋分化促進剤を含む培地中で多能性幹細胞を培養することを含む、多能性幹細胞を心筋細胞に分化誘導する方法。
- 請求項1~13のいずれかの心筋分化促進剤を含む培地中で多能性幹細胞を培養することを含む、多能性幹細胞から心筋細胞を製造する方法。
- 請求項17の方法で製造された心筋細胞。
- 式(I):
R1、R4及びR5は、各々独立して、水素原子;ハロゲン原子;水酸基;炭素数1~5の直鎖又は分岐アルコキシ基;非置換又はハロゲン原子で置換された炭素数1~5の直鎖又は分岐アルキル基;又は基-NR12R13(R12及びR13は、各々独立して、水素原子、酸素原子、又は非置換又はハロゲン原子で置換された炭素数1~5の直鎖又は分岐アルキル基である)である、
R2及びR3は、炭素数1~5の直鎖又は分岐アルコキシ基である、又はR2及びR3は、一緒になって-O-CH2-O-または-O-(CH2)2-O-を形成している、
R6-R9は、各々独立して、水素原子;ハロゲン原子;水酸基;炭素数1~5の直鎖又は分岐アルコキシ基;基-C(O)Aで置換された炭素数1~5の直鎖又は分岐アルコキシ基(Aは、非置換又は炭素数1~5の直鎖または分岐アルキル基で置換された飽和または不飽和5または6員環であり、該環は窒素原子、酸素原子、及び硫黄原子から独立に選択される1または2個の原子を含んでいてもよい);非置換又はハロゲン原子で置換された炭素数1~5の直鎖又は分岐アルキル基;又は基-NR12R13(R12及びR13は、各々独立して、水素原子、酸素原子、又は非置換又はハロゲン原子で置換された炭素数1~5の直鎖又は分岐アルキル基である)である、ここでR6-R9のうち隣接する2つが一緒になって-O-CH2-O-又は-O-(CH2)2-O-を形成していてもよい、
R10-R11は、各々独立して、水素原子;又は炭素数1~5の直鎖又は分岐アルキル基である、
Xは、酸素原子;硫黄原子;又は基-NR15(R15は、水素原子、炭素数1~5の直鎖又は分岐アルキル基、又は炭素数1~5の直鎖又は分岐アシル基である)である、および
nは、0から6の整数である、但し、nが1又は2のとき、R7はCl及びメトキシ基ではなく、R2はメトキシ基ではない]
を有する化合物またはその塩。 - R6-R9が、各々独立して、水素原子;ハロゲン原子;水酸基;炭素数1~5の直鎖又は分岐アルコキシ基;非置換又はハロゲン原子で置換された炭素数1~5の直鎖又は分岐アルキル基;又は基-NR12R13(R12及びR13は、各々独立して、水素原子、酸素原子、又は非置換又はハロゲン原子で置換された炭素数1~5の直鎖又は分岐アルキル基である)である、ここでR6-R9のうち隣接する2つが一緒になって-O-CH2-O-又は-O-(CH2)2-O-を形成していてもよい、
nが、3から6の整数である、
請求項19の化合物またはその塩。 - R1、R4、R5、R6、及びR9が、各々独立して、水素原子;ハロゲン原子;水酸基;炭素数1~5の直鎖又は分岐アルコキシ基;又は非置換又はハロゲン原子で置換された炭素数1~5の直鎖又は分岐アルキル基である、および
R7が、水素原子;ハロゲン原子;水酸基;炭素数1~5の直鎖又は分岐アルコキシ基;非置換又はハロゲン原子で置換された炭素数1~5の直鎖又は分岐アルキル基;又は基-NR12R13(R12及びR13は、各々独立して、水素原子、酸素原子、又は非置換又はハロゲン原子で置換された炭素数1~5の直鎖又は分岐アルキル基である)である、
R8が、水素原子;ハロゲン原子;水酸基;炭素数1~5の直鎖又は分岐アルコキシ基;又は非置換又はハロゲン原子で置換された炭素数1~5の直鎖又は分岐アルキル基である、
又は、R7及びR8が、一緒になって-O-CH2-O-または-O-(CH2)2-O-を形成している、
請求項20の化合物またはその塩。 - R1、R4、R5、R6、及びR9が水素原子である、
R2及びR3が、メトキシ基、エトキシ基、またはプロポキシ基である、および
R10及びR11が、水素原子である、
請求項21の化合物またはその塩。 - Xが、硫黄原子である、および
nが、3である、
請求項22の化合物またはその塩。 - R1、R4、R5、R6、R8、及びR9が、各々独立して、水素原子;ハロゲン原子;水酸基;炭素数1~5の直鎖又は分岐アルコキシ基;又は非置換又はハロゲン原子で置換された炭素数1~5の直鎖又は分岐アルキル基である、
R7が、基-C(O)Aで置換された炭素数1~5の直鎖又は分岐アルコキシ基(Aは、非置換又は炭素数1~5の直鎖または分岐アルキル基で置換された飽和または不飽和5または6員環であり、該環は窒素原子、酸素原子、及び硫黄原子から独立に選択される1または2個の原子を含んでいてもよい)である、
請求項19の化合物またはその塩。 - R1、R4、R5、R6、R8、及びR9が、水素原子である、
R2及びR3が、メトキシ基、エトキシ基、又はプロポキシ基である、
R10及びR11が、水素原子である、
Xが、硫黄原子である、
Aが、非置換又は炭素数1~5の直鎖または分岐アルキル基で置換された、ピペリジニル基、ピペラジニル基、又はモルホリニル基である、および
nが、0から4の整数である、
請求項24の化合物またはその塩。
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