JPH01163143A - Optically active difluoroalcohol derivative - Google Patents
Optically active difluoroalcohol derivativeInfo
- Publication number
- JPH01163143A JPH01163143A JP63059159A JP5915988A JPH01163143A JP H01163143 A JPH01163143 A JP H01163143A JP 63059159 A JP63059159 A JP 63059159A JP 5915988 A JP5915988 A JP 5915988A JP H01163143 A JPH01163143 A JP H01163143A
- Authority
- JP
- Japan
- Prior art keywords
- phenyl
- difluoro
- formula
- chloro
- grignard reagent
- 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.)
- Granted
Links
- 229910052731 fluorine Inorganic materials 0.000 claims abstract description 24
- 125000000217 alkyl group Chemical group 0.000 claims abstract description 10
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 8
- 239000000126 substance Substances 0.000 claims abstract description 8
- 229910052794 bromium Inorganic materials 0.000 claims abstract description 7
- 229910052801 chlorine Inorganic materials 0.000 claims abstract description 7
- 125000003710 aryl alkyl group Chemical group 0.000 claims abstract description 4
- 125000003118 aryl group Chemical group 0.000 claims abstract description 3
- 125000004432 carbon atom Chemical group C* 0.000 claims description 14
- 239000011737 fluorine Substances 0.000 claims description 10
- 239000000460 chlorine Chemical group 0.000 claims description 6
- 239000001257 hydrogen Substances 0.000 claims description 6
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical group [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 claims description 5
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical group [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 5
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Chemical group BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 claims description 5
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 2
- 125000004429 atom Chemical group 0.000 claims description 2
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 claims 1
- 230000003287 optical effect Effects 0.000 abstract description 15
- 150000001875 compounds Chemical class 0.000 abstract description 14
- 108090000790 Enzymes Proteins 0.000 abstract description 8
- 102000004190 Enzymes Human genes 0.000 abstract description 8
- 239000003638 chemical reducing agent Substances 0.000 abstract description 4
- 125000002252 acyl group Chemical group 0.000 abstract description 3
- 150000001735 carboxylic acids Chemical class 0.000 abstract description 2
- 150000002148 esters Chemical class 0.000 abstract description 2
- 150000002170 ethers Chemical class 0.000 abstract description 2
- 239000005262 ferroelectric liquid crystals (FLCs) Substances 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract description 2
- 239000002994 raw material Substances 0.000 abstract description 2
- 230000001093 anti-cancer Effects 0.000 abstract 1
- 238000007796 conventional method Methods 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- -1 he=1=syl group Chemical group 0.000 description 49
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 48
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 45
- 239000007818 Grignard reagent Substances 0.000 description 32
- 239000000243 solution Substances 0.000 description 31
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 27
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 24
- 229910052799 carbon Inorganic materials 0.000 description 19
- 230000000704 physical effect Effects 0.000 description 19
- 239000002904 solvent Substances 0.000 description 19
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 17
- 239000004367 Lipase Substances 0.000 description 16
- 102000004882 Lipase Human genes 0.000 description 16
- 108090001060 Lipase Proteins 0.000 description 16
- 235000019421 lipase Nutrition 0.000 description 16
- 238000006243 chemical reaction Methods 0.000 description 15
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 14
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 14
- 230000015572 biosynthetic process Effects 0.000 description 14
- 238000003786 synthesis reaction Methods 0.000 description 14
- 238000009835 boiling Methods 0.000 description 12
- 230000007062 hydrolysis Effects 0.000 description 12
- 238000006460 hydrolysis reaction Methods 0.000 description 12
- 239000000725 suspension Substances 0.000 description 11
- 239000012046 mixed solvent Substances 0.000 description 10
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 9
- 101000968491 Pseudomonas sp. (strain 109) Triacylglycerol lipase Proteins 0.000 description 9
- 238000010898 silica gel chromatography Methods 0.000 description 9
- 238000003756 stirring Methods 0.000 description 9
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 8
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 8
- GVNVAWHJIKLAGL-UHFFFAOYSA-N 2-(cyclohexen-1-yl)cyclohexan-1-one Chemical compound O=C1CCCCC1C1=CCCCC1 GVNVAWHJIKLAGL-UHFFFAOYSA-N 0.000 description 7
- 101150065749 Churc1 gene Proteins 0.000 description 7
- 102100038239 Protein Churchill Human genes 0.000 description 7
- 235000019270 ammonium chloride Nutrition 0.000 description 7
- 229940088598 enzyme Drugs 0.000 description 7
- 229920006395 saturated elastomer Polymers 0.000 description 7
- OCKGFTQIICXDQW-ZEQRLZLVSA-N 5-[(1r)-1-hydroxy-2-[4-[(2r)-2-hydroxy-2-(4-methyl-1-oxo-3h-2-benzofuran-5-yl)ethyl]piperazin-1-yl]ethyl]-4-methyl-3h-2-benzofuran-1-one Chemical compound C1=C2C(=O)OCC2=C(C)C([C@@H](O)CN2CCN(CC2)C[C@H](O)C2=CC=C3C(=O)OCC3=C2C)=C1 OCKGFTQIICXDQW-ZEQRLZLVSA-N 0.000 description 6
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 6
- WETWJCDKMRHUPV-UHFFFAOYSA-N acetyl chloride Chemical compound CC(Cl)=O WETWJCDKMRHUPV-UHFFFAOYSA-N 0.000 description 6
- 239000012346 acetyl chloride Substances 0.000 description 6
- 239000010410 layer Substances 0.000 description 6
- ZCSHNCUQKCANBX-UHFFFAOYSA-N lithium diisopropylamide Chemical compound [Li+].CC(C)[N-]C(C)C ZCSHNCUQKCANBX-UHFFFAOYSA-N 0.000 description 6
- 238000005292 vacuum distillation Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 150000001298 alcohols Chemical class 0.000 description 5
- 239000012153 distilled water Substances 0.000 description 5
- 238000004293 19F NMR spectroscopy Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 4
- 238000006722 reduction reaction Methods 0.000 description 4
- 239000012279 sodium borohydride Substances 0.000 description 4
- 229910000033 sodium borohydride Inorganic materials 0.000 description 4
- MXIFGPYCPAUIIP-UHFFFAOYSA-N 1,1-difluoro-4-phenylbutan-2-ol Chemical compound FC(F)C(O)CCC1=CC=CC=C1 MXIFGPYCPAUIIP-UHFFFAOYSA-N 0.000 description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 3
- 108010059892 Cellulase Proteins 0.000 description 3
- JNCMHMUGTWEVOZ-UHFFFAOYSA-N F[CH]F Chemical compound F[CH]F JNCMHMUGTWEVOZ-UHFFFAOYSA-N 0.000 description 3
- 108010081348 HRT1 protein Hairy Proteins 0.000 description 3
- 102100021881 Hairy/enhancer-of-split related with YRPW motif protein 1 Human genes 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 230000010933 acylation Effects 0.000 description 3
- 238000005917 acylation reaction Methods 0.000 description 3
- 125000005907 alkyl ester group Chemical group 0.000 description 3
- 229940106157 cellulase Drugs 0.000 description 3
- GZKHDVAKKLTJPO-UHFFFAOYSA-N ethyl 2,2-difluoroacetate Chemical compound CCOC(=O)C(F)F GZKHDVAKKLTJPO-UHFFFAOYSA-N 0.000 description 3
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 3
- VUYQBMXVCZBVHP-UHFFFAOYSA-N 1,1-difluoroethanol Chemical compound CC(O)(F)F VUYQBMXVCZBVHP-UHFFFAOYSA-N 0.000 description 2
- YCQSGJWSSPQRPR-UHFFFAOYSA-N 1-chloro-1,1-difluoro-4-phenylbutan-2-ol Chemical compound FC(Cl)(F)C(O)CCC1=CC=CC=C1 YCQSGJWSSPQRPR-UHFFFAOYSA-N 0.000 description 2
- LYUPJHVGLFETDG-UHFFFAOYSA-N 1-phenylbutan-2-ol Chemical compound CCC(O)CC1=CC=CC=C1 LYUPJHVGLFETDG-UHFFFAOYSA-N 0.000 description 2
- XOYZGEQHDLLDHZ-UHFFFAOYSA-N 2,2-difluoro-1-phenylethanol Chemical compound FC(F)C(O)C1=CC=CC=C1 XOYZGEQHDLLDHZ-UHFFFAOYSA-N 0.000 description 2
- OLYKCPDTXVZOQF-UHFFFAOYSA-N 2,2-difluoro-1-phenylethanone Chemical compound FC(F)C(=O)C1=CC=CC=C1 OLYKCPDTXVZOQF-UHFFFAOYSA-N 0.000 description 2
- MNOONJNILVDLSW-UHFFFAOYSA-N 2-chloro-2,2-difluoro-1-phenylethanone Chemical compound FC(F)(Cl)C(=O)C1=CC=CC=C1 MNOONJNILVDLSW-UHFFFAOYSA-N 0.000 description 2
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- DASQIKOOFDJYKA-UHFFFAOYSA-N CCIF Chemical compound CCIF DASQIKOOFDJYKA-UHFFFAOYSA-N 0.000 description 2
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 2
- 230000021736 acetylation Effects 0.000 description 2
- 238000006640 acetylation reaction Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- AVOIWRHEAKPCCW-UHFFFAOYSA-N ethyl 4,4-difluoro-3-hydroxybutanoate Chemical compound CCOC(=O)CC(O)C(F)F AVOIWRHEAKPCCW-UHFFFAOYSA-N 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 239000012442 inert solvent Substances 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- AWUPLMYXZJKHEG-UHFFFAOYSA-N methyl 2-chloro-2,2-difluoroacetate Chemical compound COC(=O)C(F)(F)Cl AWUPLMYXZJKHEG-UHFFFAOYSA-N 0.000 description 2
- 239000012044 organic layer Substances 0.000 description 2
- OMSUIQOIVADKIM-UHFFFAOYSA-N rac-3-Hydroxybutyric acid ethyl ester Natural products CCOC(=O)CC(C)O OMSUIQOIVADKIM-UHFFFAOYSA-N 0.000 description 2
- XOYZGEQHDLLDHZ-ZETCQYMHSA-N (1s)-2,2-difluoro-1-phenylethanol Chemical compound FC(F)[C@@H](O)C1=CC=CC=C1 XOYZGEQHDLLDHZ-ZETCQYMHSA-N 0.000 description 1
- CNDHHGUSRIZDSL-UHFFFAOYSA-N 1-chlorooctane Chemical compound CCCCCCCCCl CNDHHGUSRIZDSL-UHFFFAOYSA-N 0.000 description 1
- VOGSDFLJZPNWHY-UHFFFAOYSA-N 2,2-difluoroethanol Chemical compound OCC(F)F VOGSDFLJZPNWHY-UHFFFAOYSA-N 0.000 description 1
- LDXJRKWFNNFDSA-UHFFFAOYSA-N 2-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)-1-[4-[2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidin-5-yl]piperazin-1-yl]ethanone Chemical compound C1CN(CC2=NNN=C21)CC(=O)N3CCN(CC3)C4=CN=C(N=C4)NCC5=CC(=CC=C5)OC(F)(F)F LDXJRKWFNNFDSA-UHFFFAOYSA-N 0.000 description 1
- ACUZDYFTRHEKOS-SNVBAGLBSA-N 2-Decanol Natural products CCCCCCCC[C@@H](C)O ACUZDYFTRHEKOS-SNVBAGLBSA-N 0.000 description 1
- 125000000094 2-phenylethyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000004179 3-chlorophenyl group Chemical group [H]C1=C([H])C(*)=C([H])C(Cl)=C1[H] 0.000 description 1
- XVMSFILGAMDHEY-UHFFFAOYSA-N 6-(4-aminophenyl)sulfonylpyridin-3-amine Chemical compound C1=CC(N)=CC=C1S(=O)(=O)C1=CC=C(N)C=N1 XVMSFILGAMDHEY-UHFFFAOYSA-N 0.000 description 1
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 description 1
- BCDWEYSMCDBNJS-GAJHUEQPSA-N C[C@@]1(N=C(N)SC[C@H]1c1ccccc1)c1cc(NC(=O)c2cnc(OCF)cn2)ccc1F Chemical compound C[C@@]1(N=C(N)SC[C@H]1c1ccccc1)c1cc(NC(=O)c2cnc(OCF)cn2)ccc1F BCDWEYSMCDBNJS-GAJHUEQPSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- RKFJLAMKBRRYJG-UHFFFAOYSA-M [Br-].[Mg+]CCC1=CC=CC=C1 Chemical compound [Br-].[Mg+]CCC1=CC=CC=C1 RKFJLAMKBRRYJG-UHFFFAOYSA-M 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 150000007933 aliphatic carboxylic acids Chemical class 0.000 description 1
- 239000002246 antineoplastic agent Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- PASDCCFISLVPSO-UHFFFAOYSA-N benzoyl chloride Chemical compound ClC(=O)C1=CC=CC=C1 PASDCCFISLVPSO-UHFFFAOYSA-N 0.000 description 1
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- DVECBJCOGJRVPX-UHFFFAOYSA-N butyryl chloride Chemical compound CCCC(Cl)=O DVECBJCOGJRVPX-UHFFFAOYSA-N 0.000 description 1
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- ACUZDYFTRHEKOS-UHFFFAOYSA-N decan-2-ol Chemical compound CCCCCCCCC(C)O ACUZDYFTRHEKOS-UHFFFAOYSA-N 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007071 enzymatic hydrolysis Effects 0.000 description 1
- 238000006047 enzymatic hydrolysis reaction Methods 0.000 description 1
- 239000002532 enzyme inhibitor Substances 0.000 description 1
- AVOIWRHEAKPCCW-BYPYZUCNSA-N ethyl (3S)-4,4-difluoro-3-hydroxybutanoate Chemical compound O[C@@H](CC(=O)OCC)C(F)F AVOIWRHEAKPCCW-BYPYZUCNSA-N 0.000 description 1
- DBOFMRQAMAZKQY-UHFFFAOYSA-N ethyl 2,2,3,3,3-pentafluoropropanoate Chemical compound CCOC(=O)C(F)(F)C(F)(F)F DBOFMRQAMAZKQY-UHFFFAOYSA-N 0.000 description 1
- ONGVAFSENCMVGI-UHFFFAOYSA-N ethyl 2,2-difluoro-3-hydroxybutanoate Chemical compound CCOC(=O)C(F)(F)C(C)O ONGVAFSENCMVGI-UHFFFAOYSA-N 0.000 description 1
- ZWCRLFIZIYVXMG-UHFFFAOYSA-N ethyl 2-acetyloxyacetate Chemical compound CCOC(=O)COC(C)=O ZWCRLFIZIYVXMG-UHFFFAOYSA-N 0.000 description 1
- CBDPWKVOPADMJC-UHFFFAOYSA-N ethyl 4,4-difluoro-3-oxobutanoate Chemical compound CCOC(=O)CC(=O)C(F)F CBDPWKVOPADMJC-UHFFFAOYSA-N 0.000 description 1
- 125000004494 ethyl ester group Chemical group 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 125000004672 ethylcarbonyl group Chemical group [H]C([H])([H])C([H])([H])C(*)=O 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 125000004216 fluoromethyl group Chemical group [H]C([H])(F)* 0.000 description 1
- 150000004795 grignard reagents Chemical class 0.000 description 1
- 125000005843 halogen group Chemical group 0.000 description 1
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 239000012280 lithium aluminium hydride Substances 0.000 description 1
- UKVIEHSSVKSQBA-UHFFFAOYSA-N methane;palladium Chemical compound C.[Pd] UKVIEHSSVKSQBA-UHFFFAOYSA-N 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 125000001400 nonyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000002347 octyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000001979 organolithium group Chemical group 0.000 description 1
- 125000002524 organometallic group Chemical group 0.000 description 1
- 125000003854 p-chlorophenyl group Chemical group [H]C1=C([H])C(*)=C([H])C([H])=C1Cl 0.000 description 1
- 125000006340 pentafluoro ethyl group Chemical group FC(F)(F)C(F)(F)* 0.000 description 1
- 239000000825 pharmaceutical preparation Substances 0.000 description 1
- 229940127557 pharmaceutical product Drugs 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 125000000286 phenylethyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])C([H])([H])* 0.000 description 1
- RZWZRACFZGVKFM-UHFFFAOYSA-N propanoyl chloride Chemical compound CCC(Cl)=O RZWZRACFZGVKFM-UHFFFAOYSA-N 0.000 description 1
- KRIOVPPHQSLHCZ-UHFFFAOYSA-N propiophenone Chemical compound CCC(=O)C1=CC=CC=C1 KRIOVPPHQSLHCZ-UHFFFAOYSA-N 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- KKCBUQHMOMHUOY-UHFFFAOYSA-N sodium oxide Chemical compound [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 1
- 229910001948 sodium oxide Inorganic materials 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- HPGGPRDJHPYFRM-UHFFFAOYSA-J tin(iv) chloride Chemical compound Cl[Sn](Cl)(Cl)Cl HPGGPRDJHPYFRM-UHFFFAOYSA-J 0.000 description 1
- 125000003944 tolyl group Chemical group 0.000 description 1
Landscapes
- Preparation Of Compounds By Using Micro-Organisms (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Liquid Crystal Substances (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野]
本発明は、強誘電性液晶、生理活性物質、抗ガン剤及び
酵素阻害剤として用いられるエステル。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to esters used as ferroelectric liquid crystals, physiologically active substances, anticancer agents, and enzyme inhibitors.
エーテル及びカルボン酸の原料として有用な光学活性な
ジフルオロアルコール誘導体に関する。This invention relates to optically active difluoroalcohol derivatives useful as raw materials for ethers and carboxylic acids.
〔従来の技術及び発明が解決しようとする課題]液晶や
医薬品等に応用される光学活性含フツ素カルビノールと
して、従来、若干の化合物が報告されている
しかしながら、光学純度に関して満足な含フツ素光学活
性カルビノールは、未だ報告されていない。従って、本
発明は、光学純度の高い新規光学活性含フツ素カルビノ
ールを提供することを目的とする。[Prior art and problems to be solved by the invention] Some compounds have been reported as optically active fluorine-containing carbinol applied to liquid crystals, pharmaceuticals, etc. However, there are no fluorine-containing compounds that are satisfactory in terms of optical purity. Optically active carbinol has not yet been reported. Therefore, an object of the present invention is to provide a novel optically active fluorine-containing carbinol with high optical purity.
本発明者らは、特に、末端にフルオロメチル基等を有す
る光学活性カルビノールを種々検討し、酵素を用いる不
斉加水分解により光学純度の高い光学活性含フツ素カル
ビノールが得られることを見出し、本発明を完成した。In particular, the present inventors investigated various types of optically active carbinol having a fluoromethyl group at the end, and found that optically active fluorinated carbinol with high optical purity can be obtained by asymmetric hydrolysis using an enzyme. , completed the invention.
本発明は、一般式: 〔式中、Rは炭素原子数1〜10のアルキル基。The present invention is based on the general formula: [In the formula, R is an alkyl group having 1 to 10 carbon atoms.
炭素原子数7〜10のアラルキル基、炭素原子数(式中
R1は水素あるいは炭素原子数1〜4のアルキル基であ
り、R2は炭素原子数1〜10のアルキル基である)を
示し、Xは水素、塩素、臭素あるいはC7X′!、、。An aralkyl group having 7 to 10 carbon atoms, the number of carbon atoms (in the formula, R1 is hydrogen or an alkyl group having 1 to 4 carbon atoms, and R2 is an alkyl group having 1 to 10 carbon atoms), is hydrogen, chlorine, bromine or C7X'! ,,.
+(nは1〜8の整数であり、X′はフッ素、塩素及び
臭素から選ばれた少なくとも一種の原子である)を示す
〕で表される光学活性なジフルオロアルコール誘導体を
提供するものである。+ (n is an integer of 1 to 8, and X' is at least one atom selected from fluorine, chlorine, and bromine)]. .
本発明に係る一般式(1)のジフルオロアルコール誘導
体は、置換基R,Xの種類により各種のものがあるが、
いずれもヒドロキシル基(CH)に結合する炭素原子が
不斉中心となった光学活性な化合物である。Rは、上述
の如く炭素原子数1〜10のアルキル基(例えば、メチ
ル基、エチル基、プロピル基、ブチル基、イソブチル基
、へ=1=シル基、オクチル基、ノニル基など)、炭素
原子数7〜10のアラルキル基(ベンジル基、フェネチ
ル基など)、炭素原子#!j、6〜10のアリール基(
フェニル基、トルイル基、パラクロロフェニル基、メタ
クロロフェニル基など)あるいは式 −CH−C−
0R”
R’ 0
(例えば、CH,CO□Et、CH2C02C8HI?
。There are various types of difluoroalcohol derivatives of general formula (1) according to the present invention depending on the types of substituents R and X.
All of them are optically active compounds in which the asymmetric center is the carbon atom bonded to the hydroxyl group (CH). R is an alkyl group having 1 to 10 carbon atoms (e.g., methyl group, ethyl group, propyl group, butyl group, isobutyl group, he=1=syl group, octyl group, nonyl group, etc.), a carbon atom as described above. Number 7 to 10 aralkyl groups (benzyl group, phenethyl group, etc.), carbon atom #! j, 6-10 aryl group (
phenyl group, tolyl group, parachlorophenyl group, metachlorophenyl group, etc.) or the formula -CH-C-
0R"R' 0 (For example, CH, CO□Et, CH2C02C8HI?
.
CH(CH3)Co□Etなど)を示す。また、Xにつ
いては、水素、塩素、臭素あるいは式c、x ’□1゜
。CH(CH3)Co□Et, etc.). Regarding X, hydrogen, chlorine, bromine or the formula c, x'□1°.
(例えば、CF3.CC1FI C2F5.CBrF
z。(For example, CF3.CC1FI C2F5.CBrF
z.
CF z CF z Clなど)を示す。CF z CF z Cl, etc.).
このような本発明の光学活性なジフルオロアルコールの
具体例としては、各種のものがあるが、後述の実施例で
記載したちの以外に、
CHFzCHCH(CH3)COzEt 。There are various specific examples of such optically active difluoroalcohols of the present invention, and in addition to those described in the Examples below, CHFzCHCH(CH3)COzEt.
H CCI F z CHCH(CH3) CO□Et昌 などがあげられる。H CCI Fz CHCH (CH3) CO□Etsho etc.
ところで、このジフルオロアルコールは様々な方法によ
り製造可能であるが、−船釣には下記の反応式により製
造することができる。By the way, this difluoroalcohol can be produced by various methods, but for boat fishing, it can be produced by the following reaction formula.
上記式中、COR”はアシル基を表す。In the above formula, COR'' represents an acyl group.
次に、各製造工程について詳述する。Next, each manufacturing process will be explained in detail.
第一工程 ゛−工0 ニ
一般式(It)の含フツ素ケトンを還元剤で還元して一
般式(I[[)の含フツ素カルビノール誘導体を製造す
る。この工程に使用しうる還元剤は、カルボニル基をヒ
ドロキシル基に還元するため常用される任意の還元剤で
あればよ(、例えば水素化ホウ素ナトリウム、水素化ア
ルミニウムリチウム。First Step ゛-Step 0 D A fluorine-containing carbinol derivative of the general formula (I[[) is produced by reducing the fluorine-containing ketone of the general formula (It) with a reducing agent. The reducing agent that can be used in this step is any reducing agent commonly used to reduce carbonyl groups to hydroxyl groups (eg, sodium borohydride, lithium aluminum hydride.
パラジウム−炭素/水素、塩化第二錫等が挙げられる。Examples include palladium-carbon/hydrogen, tin chloride, and the like.
また、還元反応を行うにあたってエタノール、イソプロ
パツール等のアルコールを溶媒として使用するのが好ま
しく、反応温度は低温から高温までいずれに設定しても
よいが、室温で行うのが望ましい。Further, in carrying out the reduction reaction, it is preferable to use an alcohol such as ethanol or isopropanol as a solvent, and the reaction temperature may be set at any temperature from low to high temperature, but it is preferable to carry out the reaction at room temperature.
この工程に使用する一般式(II)の出発原料は、下記
の式に示したように、含フツ素エチルエステルなどの含
フツ素アルキルエステル誘導体をジエチルエーテル、テ
トラヒドロフラン等の不活性溶媒中で−40〜−70゛
Cでグリニヤール試薬(RMgX’、X’はハロゲン原
子)や有機リチウム(RLi)等の有機金属試薬と反応
させるか又は含フツ素アルキルエステル誘導体をジエチ
ルエーテル等の不活性溶媒中でリチウムジイソプロピル
アミド(以下、LDAと記す)の存在下で酢酸工チルエ
ステル等の脂肪族カルボン酸のアルキルエステル(R’
CH2C0OR)と反応させることによって製造するこ
とができる。The starting material of the general formula (II) used in this step is, as shown in the formula below, a fluorine-containing alkyl ester derivative such as a fluorine-containing ethyl ester in an inert solvent such as diethyl ether or tetrahydrofuran. Either react with an organometallic reagent such as a Grignard reagent (RMgX', where X' is a halogen atom) or organolithium (RLi) at 40 to -70°C, or react the fluorine-containing alkyl ester derivative in an inert solvent such as diethyl ether. In the presence of lithium diisopropylamide (hereinafter referred to as LDA), alkyl esters of aliphatic carboxylic acids (R'
CH2C0OR).
アシル化は、常法で実施することができる。アシル化剤
としては、例えば塩化アセチル、塩化プロピオニル、塩
化ブチリル、塩化ベンゾイル、塩化オクチル等が挙げら
れる。Acylation can be carried out in a conventional manner. Examples of the acylating agent include acetyl chloride, propionyl chloride, butyryl chloride, benzoyl chloride, octyl chloride, and the like.
この工程において生成する一般式(rV)の化合物は、
ラセミ体である。The compound of general formula (rV) produced in this step is:
It is racemic.
?1三工″′ 5“ 7 \−と:第二工程で得ら
れた化合物を、酵素で不斉加水分解することにより光学
純度の高い一般式(1)の化合物が得られる。? 1 Sanko'''5'' 7 \-: The compound obtained in the second step is asymmetrically hydrolyzed with an enzyme to obtain a compound of general formula (1) with high optical purity.
酵素としては、所謂加水分解酵素であれば様々なものを
用いることができ、例えばリパーゼP。As the enzyme, various so-called hydrolytic enzymes can be used, such as lipase P.
リパーゼMY、 リパーゼM10.リパーゼOF。Lipase MY, Lipase M10. Lipase OF.
リパーゼP679.セルラーゼ等を使用することができ
る。この場合に、選択する酵素により光学活性は変動し
、例えば、リパーゼMYを使用したとき、生成するアル
コール誘導体が右旋性であれば、アシル化体(I a)
をセルラーゼ等の酵素あるいは水酸化ナトリウム等の塩
基性触媒などで処理すると、左旋性のアルコールとなる
。また、リパーゼPを使用するときは、リパーゼMYの
ときの逆の旋光性を有するアルコールが得られる場合も
ある。Lipase P679. Cellulase and the like can be used. In this case, the optical activity varies depending on the enzyme selected. For example, when lipase MY is used, if the alcohol derivative produced is dextrorotatory, the acylated product (I a)
When treated with an enzyme such as cellulase or a basic catalyst such as sodium hydroxide, it becomes a levorotatory alcohol. Furthermore, when lipase P is used, an alcohol having optical rotation opposite to that of lipase MY may be obtained.
次に、実施例に基づいて本発明を詳述するが、本発明は
これに限定されるものではない。Next, the present invention will be described in detail based on Examples, but the present invention is not limited thereto.
実施例IA
(S)−(+) −1−フェニル−2,2−ジフルオロ
エタノールの合成
H
マ
CHF2CHPh
(a)ジフルオロメチルフェニルケトンの合成:フェニ
ルグリニヤール試薬(44ミリモル)のジエチルエーテ
ノ凶容?夜を一70°Cでジフルオロ酢酸エチルエステ
ル(4,9g、40ミリモル)のジエチルエーテル溶液
中に徐々に滴下した。この溶液を一70°Cに保ち、4
時間撹拌した後、飽和塩化アンモニウム水溶液で反応を
終了させた。生じた油状物をジエチルエーテルで抽出し
、溶媒を留去し、生成物を減圧蒸留によって精製した。Example IA Synthesis of (S)-(+)-1-phenyl-2,2-difluoroethanol H MacHF2CHPh (a) Synthesis of difluoromethyl phenyl ketone: Is the diethyl ether of phenyl Grignard reagent (44 mmol) harmful? The mixture was slowly added dropwise to a solution of difluoroacetic acid ethyl ester (4.9 g, 40 mmol) in diethyl ether at -70°C. Keep this solution at -70°C for 4
After stirring for an hour, the reaction was terminated with a saturated aqueous ammonium chloride solution. The resulting oil was extracted with diethyl ether, the solvent was evaporated and the product was purified by vacuum distillation.
(b)還元工程:
○ OH
CHF z cph+ NaBH4−〉CHF z C
HPhEtol(
水素化ホウ素ナトリウム(0,38g、10ミリモル)
のエタノール(20d)溶液を0°Cに保ち、この溶液
に(a)で得たジフルオロメチルフェニルケトン(5,
1g、33ミリモル)のエタノール(20ml)溶液を
滴下した。室温で4時間撹拌した後、溶媒を留去し、飽
和塩化アンモニウム水溶液で反応を終了させた。生じた
油状物をジエチルエーテルで抽出し、溶媒を留去し、生
成物を減圧蒸留によって精製した。(b) Reduction step: ○ OH CHF z cph+ NaBH4->CHF z C
HPhEtol (sodium borohydride (0.38 g, 10 mmol)
A solution of difluoromethyl phenyl ketone (5,
A solution of 1 g, 33 mmol) in ethanol (20 ml) was added dropwise. After stirring at room temperature for 4 hours, the solvent was distilled off, and the reaction was terminated with a saturated aqueous ammonium chloride solution. The resulting oil was extracted with diethyl ether, the solvent was evaporated and the product was purified by vacuum distillation.
(c)アシル化工程:
■−フェニルー2,2−ジフルオロエタノール(1,6
g、IQミリモル)、塩化アセチル(0,85雁、12
ミリモル)及びピリジ、ン(1,6m1.20ミリモル
)の塩化メチレン溶液(20mffi)を室温で6時間
撹拌した後、IN塩酸で反応を終了させた。生じた油状
物を塩化メチレンで抽出し、溶媒を留去した後、ヘキサ
ンと酢酸エチルとの混合溶媒(5:1)を用いてシリカ
ゲルカラムクロマトグラフィーにより精製した。(c) Acylation step: ■-Phenyl-2,2-difluoroethanol (1,6
g, IQ mmol), acetyl chloride (0.85 g, 12
After stirring a methylene chloride solution (20 mffi) of pyridine (1.20 mmol) and pyridine (1.6 ml, 1.20 mmol) at room temperature for 6 hours, the reaction was terminated with IN hydrochloric acid. The resulting oil was extracted with methylene chloride, the solvent was distilled off, and then purified by silica gel column chromatography using a mixed solvent of hexane and ethyl acetate (5:1).
(以下余白)
(d)加水分解工程:
1−フェニル−2,2−ジフルオロエチルアセタート(
1,0g、5ミリモル)を蒸留水(50滅)に懸濁させ
た懸濁液に、更に、リパーゼMY(2,5g、名糖産業
社製)を懸濁させた。この懸濁液を40〜41°Cに保
ち、2時間撹拌した後、酢酸エチルを加え、撹拌し、そ
の懸濁液を遠心分離する。有機層を取り出した後、水層
を再度抽出する。溶媒を留去した後、生成物をヘキサン
と酢酸エチルとの混合溶媒(5:1)を用いてシリカゲ
ルカラムクロマトグラフィーによりカルビノールとアセ
タート体を分離精製した。(Left below) (d) Hydrolysis step: 1-phenyl-2,2-difluoroethyl acetate (
Lipase MY (2.5 g, manufactured by Meito Sangyo Co., Ltd.) was further suspended in a suspension prepared by suspending 1.0 g, 5 mmol) in distilled water (50%). The suspension is kept at 40-41°C and stirred for 2 hours, then ethyl acetate is added, stirred and the suspension is centrifuged. After removing the organic layer, the aqueous layer is extracted again. After distilling off the solvent, the product was purified by silica gel column chromatography using a mixed solvent of hexane and ethyl acetate (5:1) to separate and purify carbinol and acetate.
得られた1−フェニル−2,2−ジフルオロエ・タノー
ルの物理的性質を以下に示す。The physical properties of the obtained 1-phenyl-2,2-difluoroetanol are shown below.
分子量 158
沸点 93〜94°C/ 10 mmlmm1l
O,44(4: 1)19F NMRδ
(ppm) 4 7. O(dd、 J (C
HF z) −52、01lz、 J (CHF2CH
)= 10.01(z)’HNMRδ(ppm) 2
.93 (bs、 L H,OH) 。Molecular weight 158 Boiling point 93-94°C/ 10 mmlmm1l
O,44(4:1)19F NMRδ
(ppm) 4 7. O(dd, J(C
HF z) -52, 01lz, J (CHF2CH
)=10.01(z)'HNMRδ(ppm) 2
.. 93 (BS, L H, OH).
δ4.65 (dt、J(CHF2C且)=10.2
Hz、 J (C且F2C旦)=4.8Hz、 L H
,CH) 。δ4.65 (dt, J(CHF2C and)=10.2
Hz, J (C and F2Cdan) = 4.8Hz, L H
, CH).
δ5.66 (dt、J(CHFz)=53.1Hz
。δ5.66 (dt, J(CHFz)=53.1Hz
.
J(C且F、C且)=4.8Hz、 L H,CHFz
) 。J (C and F, C and) = 4.8Hz, L H, CHFz
).
δ7.3 (bs、 5 H、Ph)
IR3400(OH)、 1455 (Ph)
(cm−’)実施例IB
実施例IA(d)で得られた1−フェニル−2゜2−ジ
フルオロエチルアセタート(0,54g。δ7.3 (bs, 5H, Ph) IR3400 (OH), 1455 (Ph)
(cm-') Example IB 1-phenyl-2°2-difluoroethyl acetate obtained in Example IA(d) (0.54 g).
2.7ミリモル)を蒸留水(25d)に懸濁させた懸濁
液に、更に、セルラーゼT(天野製薬製)0.68gを
懸濁させた。この懸濁液を40〜41°Cに保ち、1時
間撹拌して反応させた。その後、実施例IA (d)と
同様にして精製分離して、(−)−1−フェニル−2,
2−ジフルオロエタノールを得た。このものの物理的性
質は、実施例IA (d)で得られた(旦)−(+)−
1−フェニル−2,2−ジフルオロエタノールと同じで
あった。In addition, 0.68 g of Cellulase T (manufactured by Amano Pharmaceutical Co., Ltd.) was suspended in a suspension prepared by suspending 2.7 mmol) in distilled water (25d). This suspension was kept at 40-41°C and stirred for 1 hour to react. Thereafter, it was purified and separated in the same manner as in Example IA (d), and (-)-1-phenyl-2,
2-difluoroethanol was obtained. The physical properties of this material are as follows: (dan)-(+)- obtained in Example IA (d)
It was the same as 1-phenyl-2,2-difluoroethanol.
さらに、実施例IAと同様の方法で、下記の化合物を製
造することができた。Furthermore, the following compounds could be produced in the same manner as in Example IA.
1)(+)−1,1−ジフルオロ−3−フェニル−2−
プロパツール(なお、実施例IA (a)でフェニルグ
リニヤール試薬の代わりのベンジルグリニヤール試薬を
使用)
(、HFICHC)(ZPh
昌
分子量 172
沸点 100〜102°C/ 10 mmHgRf
O,52(3:1)
19F NMRδ(ppm) 50.0 (dd、
J (CHF z) =51.0H2,J(CHF2
CH)= 10.0112)IHNMRδ(ppm)
2.06 (bs、 L H、OR)。1) (+)-1,1-difluoro-3-phenyl-2-
Proper tool (in Example IA (a), benzyl Grignard reagent was used instead of phenyl Grignard reagent) (, HFICHC) (ZPh Chang molecular weight 172 Boiling point 100-102 °C / 10 mmHgRf
O, 52 (3:1) 19F NMR δ (ppm) 50.0 (dd,
J (CHF z) = 51.0H2, J (CHF2
CH) = 10.0112) IHNMRδ (ppm)
2.06 (bs, LH, OR).
62、68 (dd、 J (CH−Hb)= 13.
8Hz。62, 68 (dd, J (CH-Hb) = 13.
8Hz.
J (CH,HbCH)=8.111z、11i。J (CH, HbCH) = 8.111z, 11i.
C且、Hb) 。C and Hb).
δ2.92 (dd、 J (CH−Hb) =
13.811z。δ2.92 (dd, J (CH-Hb) =
13.811z.
J (CH,且、C且) =4.2Hz、 I H。J (CH, and C) = 4.2Hz, IH.
CH,且、〕。CH, and].
63、80 (dtt、 J (CHF2CH)=J
(CHCHっHb) = 4.2 Hz。63, 80 (dtt, J (CHF2CH)=J
(CHCHHb) = 4.2 Hz.
J(C且C且−Hb) =8. Itlz。J (C and C and -Hb) = 8. Itlz.
J(CHFzCH)= 10.0Hz、L H,CH:
l 。J (CHFzCH) = 10.0Hz, L H, CH:
l.
δ5.52 (dt、 J (CHFz)−55,8
11z。δ5.52 (dt, J (CHFz)-55,8
11z.
J(C且F、C且)−4,2Hz、 I H。J (C and F, C and) -4,2Hz, IH.
CHF2)。CHF2).
67、1〜1.4 (m、 5 H,Ph)IR34
00(OH) (am−’)2)(+)−1,
1−ジフルオロ−4−フェニル−2−ブタノール(なお
、実施例IA (a)でフェニルグリニヤール試薬の代
わりのβ−フェネチルグリニヤール試薬を使用)
CHFzCHCHzCHzph
昌
分子量 186
沸点 116〜118°C/ 11 mmHgRf
O,25(5: 1)
19F NMRδ(ppm) 49.7 (dd
、 J (CHF 2) 〜51、0Hz、 J (C
H上20且)〜10.0tlz)’HNMRδ(ppm
) 1.6〜2.2 (m、 2 H。67, 1-1.4 (m, 5 H, Ph) IR34
00(OH) (am-')2)(+)-1,
1-Difluoro-4-phenyl-2-butanol (in Example IA (a), β-phenethyl Grignard reagent was used instead of phenyl Grignard reagent) CHFzCHCHzCHzph Molecular weight 186 Boiling point 116-118°C/ 11 mmHgRf
O, 25 (5: 1) 19F NMR δ (ppm) 49.7 (dd
, J (CHF 2) ~51,0Hz, J (C
20 on H)~10.0tlz)'HNMRδ(ppm
) 1.6-2.2 (m, 2H.
CHC且2CH2)。CHC and 2CH2).
62.05 (bs、 I H,OH) 。62.05 (BS, IH, OH).
62、5〜3.1 (m、 2 H,C且2Ph)
。62,5~3.1 (m, 2H,C and 2Ph)
.
63、3〜3.9 (m、 L H,C且OH)。63, 3-3.9 (m, LH, C and OH).
65.50 (dt、J(CHFz)〜56.7Hz
。65.50 (dt, J(CHFz)~56.7Hz
.
J(CHFzC且)〜4.5Hz、 L H,CHFz
) 。J (CHFzC and) ~ 4.5Hz, L H, CHFz
).
67、1〜7.4 (m、 5 H,Ph)IR34
00(OH) (cm−’)また、この過程で得ら
れた1、1−ジフルオロ−4−フェニル−2−ブチルア
セタートを、実施例IBと同様に加水分解して、(−)
−1,1−ジフルオロ−4−フェニル−2−ブタノール
ヲ得た。このものの物理的性質は、上記(+)−1゜1
−ジフルオロ−4−フェニル−2−ブタノールと同じで
あった。67, 1-7.4 (m, 5 H, Ph) IR34
00(OH) (cm-') In addition, 1,1-difluoro-4-phenyl-2-butyl acetate obtained in this process was hydrolyzed in the same manner as in Example IB to give (-)
-1,1-difluoro-4-phenyl-2-butanol was obtained. The physical properties of this thing are (+)-1゜1
-difluoro-4-phenyl-2-butanol.
3)(且)−(+) −1,1−ジフルオロ−2−オク
タツール(なお、実施例IA (a)でフェニルグリニ
ヤール試薬の代わりにn−へキシルグリニヤール試薬を
使用)
CH
CHF z CHCb HIj
分子量 166
19F NMRδ(ppm) 47.2 (ddd
。3) (and) -(+) -1,1-difluoro-2-octatool (in Example IA (a), n-hexyl Grignard reagent was used instead of phenyl Grignard reagent) CH CHF z CHCb HIj Molecular weight 166 19F NMRδ (ppm) 47.2 (ddd
.
J (CHFsF b) =264.8+1z。J (CHFsF b) = 264.8 + 1z.
J(C且F aF b) −52,7Hz。J(C[F aF b) -52,7Hz.
J(CH−Fm、FbCH) 〜10.2tlz、CH且、Fb) 。J(CH-Fm, FbCH) ~10.2tlz, CH and Fb).
δ52.8 (dad、 J (CHヱ−F b)〜2
64.8Hz、J(C且F、F、)= 52.4 Hz
、J (CHF−F bC且)〜10.4)1z、CH
FaFb)
、’HNMRδ(ppm) 0.7〜1.7 (m、
13 H)。δ52.8 (dad, J (CHヱ-F b)~2
64.8Hz, J(C and F, F,) = 52.4Hz
, J (CHF-F bC and) ~10.4) 1z, CH
FaFb), 'HNMRδ (ppm) 0.7-1.7 (m,
13H).
δ2.4 (bs、 I H,OH) 。δ2.4 (bs, IH, OH).
δ3.3〜3.9 (m、 L H,CH) 。δ3.3-3.9 (m, LH, CH).
δ5.8 (dt、 J (CHF z)= 49.
3Hz。δ5.8 (dt, J (CHF z) = 49.
3Hz.
J(C且F、C且) 〜4.0Hz、 L H,CHF
z)IR3400(OH)、2940(CHz)(cm
−’)4)(且)−(+)−1,1−ジフルオロ−2−
デカノール(なお、実施例IA (a)でフェニルグリ
ニヤール試薬の代わりにn−オクチルグリニヤール試薬
を使用)
CH
CHF z CHCs HIt
分子量 194
沸点 110〜112°C/ 16 mmHg19F
NMRδ(ppm) 47.2 (ddd。J (C and F, C and) ~4.0Hz, L H, CHF
z) IR3400 (OH), 2940 (CHz) (cm
-')4)(and)-(+)-1,1-difluoro-2-
Decanol (n-octyl Grignard reagent was used instead of phenyl Grignard reagent in Example IA (a)) CH CHF z CHCs HIt Molecular weight 194 Boiling point 110-112°C/ 16 mmHg19F
NMRδ (ppm) 47.2 (ddd.
J(CHヱ−Fb) = 274.711z。J(CHヱ−Fb)= 274.711z.
J (CHF−F b) −54,6Hz。J (CHF-F b) -54,6Hz.
J (CHF−FbCH) = 11.1llz。J (CHF-FbCH) = 11.1llz.
CH−Fm、Fb) 。CH-Fm, Fb).
δ52.2 (ddd、J(CHFaFb)=274.
7Hz。δ52.2 (ddd, J(CHFaFb)=274.
7Hz.
J(CHF−Fb)=54.6Hz。J(CHF-Fb)=54.6Hz.
J(CHF、FbC且) = 11.1 Hz。J(CHF, FbC and) = 11.1 Hz.
CHF、F、)
’HNMRδ(ppm) 0.7〜1.0 (bt、
J = 7.5 Hz。CHF, F,)'HNMRδ (ppm) 0.7-1.0 (bt,
J = 7.5 Hz.
3H,CH,)。3H, CH,).
61.1〜1.7 (m、14H) 。61.1-1.7 (m, 14H).
62.07 (bs、 I H,OH) 。62.07 (bs, IH, OH).
δ3.4〜3.9 (m、 L H,CH) 。δ3.4-3.9 (m, LH, CH).
65.50 (dt、J(CHFz)〜56.4Hz
。65.50 (dt, J(CHFz)~56.4Hz
.
J(CHF、CH)〜4.5Hz、I H,CHFz:
]IR3375(OH)、 2925 (CHz)
(cm−’)また、この過程で得られた1、1−ジフル
オロ−2−デシルアセタートを実施例IBと同様に加水
分解して、(S)−(−) −1,1−ジフルオロ−2
−デカノールを得た。このものの物理的性質は上記(R
)−(+) −1,l−ジフルオロ−2−デカノールと
同じであり、またその構造式は次の如くであった。J (CHF, CH) ~ 4.5Hz, I H, CHFz:
]IR3375 (OH), 2925 (CHz)
(cm-') Also, 1,1-difluoro-2-decyl acetate obtained in this process was hydrolyzed in the same manner as in Example IB, and (S)-(-)-1,1-difluoro-2
- Decanol was obtained. The physical properties of this substance are as described above (R
)-(+)-1,l-difluoro-2-decanol, and its structural formula was as follows.
CH
マ
CHF z CHCIIH17
実施例2A
(且)−(+)−4,4−ジフルオロ−3−ヒドロキシ
醋酸エチルエステル
♀H0
II II
CHFzCOEt+ CH:+COEtリチウムジイソ
プロピルアミド(200ミリモル)のジエチルエーテル
溶液(100d)を−70°Cに保ち、この溶液中に酢
酸エチル(19,5d。CH MacHF z CHHCIIH17 Example 2A (and)-(+)-4,4-difluoro-3-hydroxyacetic acid ethyl ester ♀H0 II II CHFzCOEt+ CH:+COEt Lithium diisopropylamide (200 mmol) in diethyl ether solution (100d) was maintained at -70°C and ethyl acetate (19.5d.
200ミリモル)のジエチルエーテル溶液(30d)を
滴下した。この溶液を一70°Cに保ち、1時間撹拌し
た後、ジフルオロ酢酸エチルエステル(12,4g、1
00ミリモル)のジエチルエーテル溶液(40yjりを
徐々に滴下した。この溶液を一70°Cに保ち、4時間
撹拌した後、飽和塩化アンモニウム水溶液で反応を終了
させた。生じた油状物をジエチルエーテルで抽出し、溶
媒を留去した後、生成物を減圧蒸留によって精製した。200 mmol) in diethyl ether (30d) was added dropwise. The solution was kept at -70°C and stirred for 1 hour, then difluoroacetic acid ethyl ester (12.4 g, 1
00 mmol) in diethyl ether was gradually added dropwise. The solution was kept at -70°C and stirred for 4 hours, and then the reaction was terminated with a saturated aqueous ammonium chloride solution. The resulting oil was dissolved in diethyl ether. After extraction and evaporation of the solvent, the product was purified by vacuum distillation.
(b)上記の(a)で製造した4、4−ジフルオロアセ
ト酢酸エチルエステルをエタノール中で実施例IAのb
)と同様にして水素化ホウ素すl・リウムで還元してラ
セミ体の4.4−ジフルオロ−3−ヒドロキシ酪酸エチ
ルエステルを得た。(b) 4,4-difluoroacetoacetic acid ethyl ester prepared in (a) above in ethanol b of Example IA.
), racemic 4,4-difluoro-3-hydroxybutyric acid ethyl ester was obtained by reduction with sulfur borohydride.
(C)上記の(b)で製造した4、4−ジフルオロ−3
−ヒドロキシ酪酸エチルエステルを実施例I Aの(C
)と同様にして塩化メチレン中でピリジンの存在で塩化
アセチルでアセチル化して4、 4−ジフルオロ−3−
アセトキシ醋酸エチルエステルを得た。(C) 4,4-difluoro-3 produced in (b) above
-Hydroxybutyric acid ethyl ester of Example IA (C
) to give 4,4-difluoro-3- by acetylation with acetyl chloride in the presence of pyridine in methylene chloride.
Acetoxyacetic acid ethyl ester was obtained.
(d)上記の(C)で製造した4、4−ジフルオロ−3
−アセトキシ酪酸エチルエステルを実施例IAの(d)
と同様にしてリパーゼMYを用いて加水分解し、(R)
−(+)−4,4−ジフルオロ−3−ヒドロキシ酪酸エ
チルエステルヲ得た。(d) 4,4-difluoro-3 produced in (C) above
- acetoxybutyric acid ethyl ester as in Example IA (d)
Hydrolyzed using lipase MY in the same manner as (R)
-(+)-4,4-difluoro-3-hydroxybutyric acid ethyl ester was obtained.
得られた生成物の物理的性質は、下記のとおりであった
。The physical properties of the obtained product were as follows.
分子量 168
沸点 115〜116°C/ 71 mmHg19F
NMRδ(ppm) 49. O(ddd。Molecular weight 168 Boiling point 115-116°C/71 mmHg19F
NMRδ (ppm) 49. O(ddd.
J(CHF、Fb) =266.0IIz。J (CHF, Fb) = 266.0IIz.
J(CHF、Fb)=52.3Hz。J(CHF, Fb) = 52.3Hz.
J(CI(ヱ−,F 、 C且) = 10.8)1z
。J(CI(ヱ-,F,Cand)=10.8)1z
.
CHfjFbL
650、3 (ddd、 J (CHF、Fb)=26
6.0Hz、J(C且F 、 F b)=52.8Hz
、J(CHF−FbCH)=12.5 Hz 、CHF
* F b )’HNMRδ(ppm)1.34
(t、J=7.2Hz。CHfjFbL 650, 3 (ddd, J (CHF, Fb) = 26
6.0Hz, J (C and F, Fb) = 52.8Hz
, J(CHF-FbCH)=12.5 Hz, CHF
*F b )'HNMRδ (ppm) 1.34
(t, J=7.2Hz.
3)f、CH3〕。3) f, CH3].
δ2.57 (dd、 J (CH−Hb)=17.4
Hz。δ2.57 (dd, J (CH-Hb) = 17.4
Hz.
J(CH,HbC且)=7.2Hz。J(CH, HbC and) = 7.2Hz.
I H,CH,Hb)。I H, CH, Hb).
62、73 (dd、 J (C且、且b) = 17
.4 Hz。62, 73 (dd, J (C and b) = 17
.. 4 Hz.
J(CH,且、C且)= 15.9Hz、 L H。J(CH, and C) = 15.9Hz, LH.
CH,且、〕。CH, and].
δ3.74 (bs、 L H,OH)。δ3.74 (bs, LH, OH).
64.22 (q、J=7.2Hz、2H,CHz)
。64.22 (q, J=7.2Hz, 2H, CHz)
.
δ5.73 (dt、 J (C且Fz)=56.3
Hz。δ5.73 (dt, J (C and Fz) = 56.3
Hz.
J(C且F2CH)=3.9H2,I H,CHF2)
IR3450(OH)、3000 (CH2)。J (C and F2CH) = 3.9H2, I H, CHF2)
IR3450 (OH), 3000 (CH2).
1725 (C=O) (cm−’)実施例IA、
B及び実施例2人における加水分解率並びに得られた生
成物の旋光度及び光学純度を第1表に示す。1725 (C=O) (cm-') Example IA,
Table 1 shows the hydrolysis rates in B and Example 2, as well as the optical rotation and optical purity of the obtained products.
なお、実施例2Aで得られた(R)−(+)−4,4−
ジフルオロ−3−ヒドロキシ醋酸エチルエステルと反対
の旋光度を示す(S)−(−)−4,4−ジフルオロ−
3−ヒドロキシ酪酸エチルエステルの製造例を実施例2
Bに示す。Note that (R)-(+)-4,4- obtained in Example 2A
(S)-(-)-4,4-difluoro- exhibiting an optical rotation opposite to difluoro-3-hydroxy acetic acid ethyl ester
Example 2 shows an example of the production of 3-hydroxybutyric acid ethyl ester.
Shown in B.
実施例2B
実施例2への(d)で得られた(+) −4,4−ジフ
ルオロ−3−アセトキシ酪酸エチルエステル(1,87
g、 8.9ミリモル)を蒸留水(90d)に懸濁させ
た″?!、濁液に、更に、セルラーゼT(2,22g、
天守製薬製)を懸濁させた。この懸濁液を40〜41°
Cに保ち、5時間撹拌した後、酢酸エチルを加支、撹拌
し、その懸濁液を遠心分離した。有a層を取り出した後
、水層を再度抽出した。溶媒を留去した後、生成物をヘ
キサンと酢酸エチルとの混合溶媒(5:1)を用いてシ
リカゲルカラムクロマトグラフィーにより精製単離して
(旦)−(−)−4,4−ジフルオロ−3−ヒドロキシ
酪酸エチルエステルを得た。なお、この反応では加水分
解率は100%であり、また得られた(S)−(−)−
4,4−ジフルオロ−3−ヒドロキシ酪酸エチルエステ
ルの比旋光度〔α〕。Example 2B (+)-4,4-difluoro-3-acetoxybutyric acid ethyl ester (1,87
g, 8.9 mmol) was suspended in distilled water (90 d).
Tenshu Pharmaceutical Co., Ltd.) was suspended. This suspension was heated at 40-41°
After stirring for 5 hours while maintaining the temperature at C.C., ethyl acetate was added and stirred, and the suspension was centrifuged. After removing the aqueous layer, the aqueous layer was extracted again. After distilling off the solvent, the product was purified and isolated by silica gel column chromatography using a mixed solvent of hexane and ethyl acetate (5:1) to obtain (dan)-(-)-4,4-difluoro-3. -Hydroxybutyric acid ethyl ester was obtained. In this reaction, the hydrolysis rate was 100%, and the obtained (S)-(-)-
Specific rotation [α] of 4,4-difluoro-3-hydroxybutyric acid ethyl ester.
は−11,86(クロロホルム中の濃度:1.16)で
あり、構造式は次の通りであった。was -11,86 (concentration in chloroform: 1.16), and the structural formula was as follows.
OH○
マ 1I
CHFzCHCHzCOEt
(以下余白)
第1表
*1 アルコール誘導体の一般式 : CHF、CH
R*2 実施例IAOもOOH
*3 実施例IBのもの
実施例2C
(1)(−)−1,1−ジフルオロ−3−フェニル−2
−プロパツールの合成
実施例IA(a)において、フェニルグリニヤール試薬
の代わりにベンジルグリニヤール試薬を用い、また(d
)においてリパーゼMYの代わりにリパーゼP(天野製
薬製)を用いたこと以外は、実施例IAの(a)〜(d
)の工程と同様の操作を行って、(−)−1,1−ジフ
ルオロ−3−フェニル−2−プロパツールを得た。この
ものの物理的性質は(+)−1,1−ジフルオロ−3−
フェニル−2−プロパツールと同じであった。OH○ Ma 1I CHFzCHCHzCOEt (Left below) Table 1 *1 General formula of alcohol derivatives: CHF, CH
R*2 Example IAO is also OOH *3 Example IB Example 2C (1)(-)-1,1-difluoro-3-phenyl-2
- Synthesis of propatool In Example IA(a), a benzyl Grignard reagent is used instead of a phenyl Grignard reagent, and (d
Example IA (a) to (d) except that Lipase P (manufactured by Amano Pharmaceutical) was used instead of Lipase MY in Example IA.
The same operation as in step ) was performed to obtain (-)-1,1-difluoro-3-phenyl-2-propatol. The physical properties of this substance are (+)-1,1-difluoro-3-
It was the same as phenyl-2-propatol.
(2)(−)−1,1−ジフルオロ−4−フェニル−2
−ブタノールの合成
実施例IA (a)において、フェニルグリニヤール試
薬の代わりにβ−フェネチルグリニヤール試薬を用い、
また(d)においてリパーゼMYの代わりにリパーゼP
(天野製薬製)を用いたこと以外は、実施例IAの(a
)〜(d)の工程と同様の操作を行って、(−)−1,
1−ジフルオロ−4−フェニル−2−ブタノールを得た
。このものの物理的性質は(+)−1,1−ジフルオロ
−4−フェニル−2−ブタノールと同じであった。(2)(-)-1,1-difluoro-4-phenyl-2
- Synthesis of Butanol Example IA In (a), using β-phenethyl Grignard reagent instead of phenyl Grignard reagent,
Also, in (d), lipase P instead of lipase MY
(a) of Example IA except that (manufactured by Amano Pharmaceutical)
) to (d) to obtain (-)-1,
1-difluoro-4-phenyl-2-butanol was obtained. The physical properties of this were the same as (+)-1,1-difluoro-4-phenyl-2-butanol.
(3)(S) −(−)−1,1−ジフルオロ−2−オ
クタツールの合成
実施例1A(a)において、フェニルグリニヤール試薬
の代わりにn−へキシルグリニヤール試薬を用い、また
(d)においてリパーゼMYの代わりにリパーゼP(天
野製薬製)を用いたこと以外は、実施例IAの(a)〜
(d)の工程と同様の操作を行って、(S)−(−)−
1,1−ジフルオロ−2−オクタツールを得た。このも
のの物理的性質は(R) −(+)−1,1−ジフルオ
ロ−2−オクタツールと同じであった。(3) Synthesis of (S) -(-)-1,1-difluoro-2-octatool In Example 1A (a), n-hexyl Grignard reagent was used instead of phenyl Grignard reagent, and (d) (a) to Example IA except that Lipase P (manufactured by Amano Pharmaceutical) was used instead of Lipase MY in
Perform the same operation as in step (d) to obtain (S)-(-)-
1,1-difluoro-2-octatool was obtained. The physical properties of this were the same as (R)-(+)-1,1-difluoro-2-octatool.
(4)(旦)−(−)−1,1−ジフルオロ−2−デカ
ノールの合成
実施例IA(a)において、フェニルグリニヤール試薬
の代わりにn−オクチルグリニヤール試薬を用い、また
(d)においてリパーゼMYO代わりにリパーゼP(天
野製薬製)を用いたこと以外は、実施例IAの(a)〜
(d)の工程と同様の操作を行って、(旦)−(−)−
1,1−ジフルオロ−2−デカノールを得た。このもの
の物理的性質は(且)−(+)−1,1−ジフルオロ−
2−デカノールと同じであった。(4) Synthesis of (dan)-(-)-1,1-difluoro-2-decanol In Example IA (a), n-octyl Grignard reagent was used instead of phenyl Grignard reagent, and in (d), lipase (a) to Example IA except that Lipase P (manufactured by Amano Pharmaceutical) was used instead of MYO.
Perform the same operation as in step (d), (dan)-(-)-
1,1-difluoro-2-decanol was obtained. The physical properties of this substance are (and)-(+)-1,1-difluoro-
It was the same as 2-decanol.
(5)(旦)−(−)−4,4−ジフルオロ−3−ヒド
ロキシ酪酸エチルエステルの合成実施例2A (d)に
おいてリパーゼMYの代わりにリパーゼP(天守製薬製
)を用いたこと以外は、実施例2Aの(a)〜(d)の
工程と同様の操作を行って、(S)−(−)−4,4−
ジフルオロ−3−ヒドロキシ酪酸エチルエステルヲ得た
。(5) Synthesis of (dan)-(-)-4,4-difluoro-3-hydroxybutyric acid ethyl ester Example 2A Except for using Lipase P (manufactured by Tenshu Pharmaceutical Co., Ltd.) in place of Lipase MY in (d). , by performing the same operations as steps (a) to (d) of Example 2A, (S)-(-)-4,4-
Difluoro-3-hydroxybutyric acid ethyl ester was obtained.
このものの物理的性質は(且) −(+) −4,4−
ジフルオロ−3−ヒドロキシ酪酸エチルエステルと同じ
であった。The physical properties of this thing are (and) −(+) −4,4−
It was the same as difluoro-3-hydroxybutyric acid ethyl ester.
これら実施例IC(1)〜(5)の結果を第1表Aに示
す。The results of Examples IC (1) to (5) are shown in Table 1 A.
第1表A
(以下余白)
実施例3
(R)−(−)−1−フェニル−2−クロロ−2゜2−
ジフルオロエタノールの合成
H
CCj2FzCHPh
(a)クロロジフルオロメチルフェニルケトンの合成
フェニルグリニヤール試薬(44ミリモル)ノジエチル
エーテル溶液を一70°Cのクロロジフルオロ酢酸メチ
ルエステル(5,8g、40ミリモル)のジエチルエー
テル溶液中にゆっくりと滴下した。Table 1 A (blank below) Example 3 (R)-(-)-1-phenyl-2-chloro-2゜2-
Synthesis of difluoroethanol H CCj2FzCHPh (a) Synthesis of chlorodifluoromethyl phenyl ketone Add a solution of phenyl Grignard reagent (44 mmol) in diethyl ether to a solution of chlorodifluoroacetic acid methyl ester (5.8 g, 40 mmol) in diethyl ether at 70°C. It slowly dripped inside.
この溶液を一70°Cに保ち、4時間撹拌した後、飽和
塩化アンモニウム水溶液で反応を終了させた。The solution was kept at -70°C and stirred for 4 hours, and then the reaction was terminated with a saturated aqueous ammonium chloride solution.
生じた油状物をジエチルエーテルで抽出し、溶媒を留去
し、生成物を減圧蒸留によって精製した。The resulting oil was extracted with diethyl ether, the solvent was evaporated and the product was purified by vacuum distillation.
(b)還元工程
水素化ホウ素ナトリウム(0,38g、10ミリモル)
のエタノール(20mjり溶液をO″Cに保ち、この溶
液に(a)で製造したクロロジフルオロメチルフェニル
ケトン(3,8g、20ミリモル)のエタノール(20
mj2)溶液を滴下した。室温で4時間撹拌した後、溶
媒を留去し、飽和塩化アンモニウム水溶液で反応を終了
させた。生じた油状物をジエチルエーテルで抽出し、溶
媒を留去した後、生成物を減圧蒸留によって精製した。(b) Reduction step Sodium borohydride (0.38 g, 10 mmol)
of ethanol (20 mj) The solution was kept at O''C, and chlorodifluoromethylphenyl ketone (3.8 g, 20 mmol) prepared in (a) was added to this solution in ethanol (20 mj).
mj2) The solution was added dropwise. After stirring at room temperature for 4 hours, the solvent was distilled off, and the reaction was terminated with a saturated aqueous ammonium chloride solution. The resulting oil was extracted with diethyl ether, the solvent was distilled off and the product was purified by vacuum distillation.
(C)アシル化(アセチル化)工程
(b)で製造シた1−フェニル−2−クロロ−2,2−
ジフルオロエタノール(1,1g、6ミリモル)、ピリ
ジン(1,0d、12ミリモル)及び塩化アセチル(0
,5mN、12ミリモル)の塩化メチレン溶液(20d
)を室温で6時間撹拌した後、IN塩酸で反応を終了さ
せた。生じた油状物を塩化メチレンで抽出し、溶媒を留
去した後、ヘキサンと酢酸エチルとの混合溶媒(5:1
)を用いてシリカゲルクロマトグラフィーで精製した。(C) 1-phenyl-2-chloro-2,2- produced in acylation (acetylation) step (b)
Difluoroethanol (1,1 g, 6 mmol), pyridine (1,0 d, 12 mmol) and acetyl chloride (0
, 5 mN, 12 mmol) in methylene chloride solution (20 d
) was stirred at room temperature for 6 hours, and then the reaction was terminated with IN hydrochloric acid. The resulting oil was extracted with methylene chloride, the solvent was distilled off, and then a mixed solvent of hexane and ethyl acetate (5:1
) and purified by silica gel chromatography.
(d)不斉加水分解
1−フェニル−2−クロロ−2,2−ジフルオロエチル
アセター)(0,9g、4ミリモル)を薄留水(40m
ffi)に懸濁させ、更にリパーゼMY(2,0g、泡
糊産業製)を懸濁させた。この懸濁液を40〜41°C
に保ち、2時間撹拌した後、酢酸エチルを加え、撹拌し
、その懸濁液を遠心分離した。有機層を取り出した後、
水層を再度抽出する。溶媒を留去した後、生成物をヘキ
サンと酢酸エチルとの混合溶媒(5:1)を用いてシリ
カゲルクロマトグラフィーによりカルビノールとアセタ
ート体を分離生成した。(d) Asymmetric hydrolysis 1-phenyl-2-chloro-2,2-difluoroethyl aceter) (0.9 g, 4 mmol) was dissolved in dilute distilled water (40 m
ffi) and further suspended in Lipase MY (2.0 g, manufactured by Awa-Nori Sangyo). This suspension was heated to 40-41°C.
After stirring for 2 hours, ethyl acetate was added, stirred, and the suspension was centrifuged. After removing the organic layer,
Extract the aqueous layer again. After distilling off the solvent, the product was subjected to silica gel chromatography using a mixed solvent of hexane and ethyl acetate (5:1) to separate carbinol and acetate.
得られた(R)−(−)−1−フェニル−2−クロロ−
2,2−ジフルオロエタノールの物理的性質は、下記の
とおりであった。The obtained (R)-(-)-1-phenyl-2-chloro-
The physical properties of 2,2-difluoroethanol were as follows.
分子量 192.5
沸点 99〜100°C/ 11 mm11g”F
NMRδ(ppm) −12,7(dd。Molecular weight 192.5 Boiling point 99-100°C/ 11 mm 11 g”F
NMRδ (ppm) -12,7 (dd.
J (C,LLFJLcI)= 17011z。J (C, LLFJLcI) = 17011z.
J (CF−F bclc H)”” 8 Hz) 。J (CF-F bclc H)"" 8 Hz).
δ−15,9(dd、 J (Cヱ−FbCl)= 1
70Hz。δ−15,9(dd, J (Cヱ−FbCl)=1
70Hz.
J(CF、F、CtC且)=8Hz)
’HNMRδ(ppm) 3.0 (bs、 L H,
OH) 。J (CF, F, CtC and) = 8Hz) 'HNMRδ (ppm) 3.0 (bs, L H,
OH).
δ4.9 [:bt、 J (Cヱ□凡bc+c且)=
7.8Hz、I H,CFzC]C且〕。δ4.9 [:bt, J (Cヱ□bc+c且)=
7.8Hz, I H, CFzC]C[].
67、2〜7.5 (m、 5 H,Ph)IR34
30(OH) (cm−’)実施例3と同様の方法で
下記の化合物を製造することができた。67, 2-7.5 (m, 5 H, Ph) IR34
30(OH) (cm-') The following compound could be produced in the same manner as in Example 3.
LA)(+)−1−クロロ−1,1−ジフルオロ−3−
フェニル−2−プロパツール(なお、実施例3(a)に
おいてフェニルグリニヤール試薬の代わりにベンジルグ
リニヤール試薬を使用)分子量 206.5
沸点 106°C/ 9 mm11g宜9F N
MRδ (pI) ずn) −12,1(dd。LA)(+)-1-chloro-1,1-difluoro-3-
Phenyl-2-propatur (in Example 3(a), benzyl Grignard reagent was used instead of phenyl Grignard reagent) Molecular weight 206.5 Boiling point 106°C/9 mm 11 g 9FN
MRδ (pI) zn) −12,1(dd.
J(Cヱ□F、C1) = 170 Hz 。J(Cヱ□F, C1) = 170 Hz.
J(CF、FbCIC且)=811z:l。J(CF, FbCIC and)=811z:l.
δ−15,3(dd、 J (CヱユF CI) =
1701(z。δ−15,3(dd, J (CueyuF CI) =
1701 (z.
J(CF、F、CiC且)=8Hz)
’HNMRδ(ppm) 2.69 (dd、 J (
C且JL Th )〜15.0Hz、J(CHCH,H
−)=9.811z、 L H,C且−t’tb) 。J (CF, F, CiC and) = 8 Hz) 'HNMRδ (ppm) 2.69 (dd, J (
C and JL Th )~15.0Hz, J(CHCH,H
-) = 9.811z, L H, C and -t'tb).
δ2.80 (bs、 I H,OH) 。δ2.80 (bs, IH, OH).
δ3. OO(dd、 J (C−旦ユLIL) =
15.0 Hz。δ3. OO(dd, J (C-danyu LIL) =
15.0Hz.
J(C且CHa Hb) =3.0 Hz + I H
+CH,且、〕。J (C and CHa Hb) = 3.0 Hz + I H
+CH, and].
63、7〜4.1 (m、 L H,CH) 。63, 7-4.1 (m, LH, CH).
δ7. O〜7.3 (m、 5 H,Ph)IR3
440(OH) (cm−’)1B)上記LA)の酵
素加水分解工程で得た1−クロロ−1,1−ジフルオロ
−3−フェニル−2−プロピルアセタートを、アセトン
(3d)、2N水酸化ナトリウム水溶液(3d )の混
合溶媒に滴下し、溶液を室温で12時間撹拌した後、I
N塩酸で溶液を中性にして反応を終了させた。得られた
油状物を塩化メチレンで抽出し、溶媒を留去した後、ヘ
キサンと酢酸エチルとの混合溶媒(5:1)を用いてシ
リカゲルカラムクロマトグラフィーにより精製した。δ7. O~7.3 (m, 5H, Ph)IR3
440 (OH) (cm-') 1B) The 1-chloro-1,1-difluoro-3-phenyl-2-propylacetate obtained in the enzymatic hydrolysis step of LA) above was mixed with acetone (3d) and 2N water. It was added dropwise to a mixed solvent of sodium oxide aqueous solution (3d), and the solution was stirred at room temperature for 12 hours.
The reaction was terminated by making the solution neutral with N hydrochloric acid. The obtained oil was extracted with methylene chloride, the solvent was distilled off, and then purified by silica gel column chromatography using a mixed solvent of hexane and ethyl acetate (5:1).
2)(+)−1−クロロ−1,1−ジフルオロ−4−フ
ェニル−2−ブタノール(なお、実施例3(a)におい
てフェニルグリニヤール試薬の代わりにβ−フェネチル
グリニヤール試薬を使用)分子量 220.5
沸点 106°C/ 9 mm11g+9F NM
Rδ(ppm) −12,1(dd。2) (+)-1-chloro-1,1-difluoro-4-phenyl-2-butanol (in Example 3(a), β-phenethyl Grignard reagent was used instead of phenyl Grignard reagent) Molecular weight 220. 5 Boiling point 106°C/9mm11g+9F NM
Rδ(ppm) −12,1(dd.
J(Cヱ−FbCl)= 171Hz。J(Cヱ-FbCl)=171Hz.
J(Cヱ−m F bCIC且)〜81(z:l。J(Cヱ-m bCIC〔)~81(z:l.
δ−15,2(dd、 J (CヱユFbCi)= 1
71Hz、J(CF、FbCtC且)=811z)IH
NMRδ(ppm) 1.5〜2.2 (m、 2
H。δ−15,2(dd, J(CueyuFbCi)=1
71Hz, J (CF, FbCtC and) = 811z) IH
NMRδ (ppm) 1.5-2.2 (m, 2
H.
CH2CH2Ph) 。CH2CH2Ph).
62.2〜2.5 (bd、 L H,OH) 。62.2-2.5 (bd, LH, OH).
62、5〜3.1 (m、 2 H,CHzCIIz
Ph) 。62, 5-3.1 (m, 2 H, CHzCIIz
Ph).
δ3.6〜4.0 (m、 L H,CH) 。δ3.6-4.0 (m, LH, CH).
δ7. O〜7.3 (m、 5 )(、Ph)IR
3250(OH) (cm−’)3)(且)−(+)
−1−クロロ−1,1−ジフルオロ−2−オクタツール
(なお、実施例3(a)においてフェニルグリニヤール
試薬の代わりにn−へキシルグリニヤール試薬を使用)
分子量 200.5
沸点 99°C/ 30 mm11g19F NM
Rδ(ppm) −11,9(dd。δ7. O ~ 7.3 (m, 5) (, Ph)IR
3250(OH) (cm-')3)(and)-(+)
-1-chloro-1,1-difluoro-2-octatool (in Example 3(a), n-hexyl Grignard reagent was used instead of phenyl Grignard reagent) Molecular weight 200.5 Boiling point 99°C/30 mm11g19F NM
Rδ(ppm) −11,9(dd.
J (CCILILF、) = 169Hz。J (CCILILF,) = 169Hz.
J(CCIF、F、C且)=81fz)。J (CCIF, F, C and) = 81fz).
δ−15,1(dd、 J (CClヱユFJL)〜1
69Hz、J(CCIF−FbCH)−8Hz)
’HNMRδ(ppm) 0.8〜2.0 (m、
13 H) 。δ-15,1(dd, J (CClueyuFJL)~1
69Hz, J(CCIF-FbCH)-8Hz)'HNMRδ(ppm) 0.8-2.0 (m,
13H).
62.2〜2.4 (bd、 I H,OH) 。62.2-2.4 (bd, IH, OH).
δ3.6〜4.1 (m 、 L H、CCI F
z CH)IR3400(OH) (cm−’)4)
(R)−(+)−1−クロロ−1,1−ジフルオロ−2
−デカノール(なお、実施例3(a)においてフェニル
グリニヤール試薬の代わりにn−オクチルグリニヤール
試薬を使用)
分子量 228.5
19F NMRδ(ppm) −11,7(dd。δ3.6~4.1 (m, LH, CCIF
z CH)IR3400(OH) (cm-')4)
(R)-(+)-1-chloro-1,1-difluoro-2
-decanol (in Example 3(a), n-octyl Grignard reagent was used instead of phenyl Grignard reagent) Molecular weight 228.5 19F NMR δ (ppm) -11,7 (dd.
J (CFJhCl)= 170Hz。J (CFJhCl) = 170Hz.
J(CF、F、CIC且)=8t(z)。J(CF, F, CIC and)=8t(z).
δ−15,3(dd、 J (CFIFJLCl) =
170Hz、 J (CF、ヱbctc且)=8H
z)IHNMRδ(ppm) 0.8〜2.1 (m、
17 H) 。δ−15,3(dd, J (CFIFJLCl) =
170Hz, J (CF, ebctc) = 8H
z) IHNMRδ (ppm) 0.8-2.1 (m,
17H).
62、1 (bs、 I H,OH)。62, 1 (bs, IH, OH).
δ3.7〜4.1 (m、 I H,CH)IR33
50(OH) (cmす)5)(尺)−(+)−4
−クロロ−4,4−ジフルオロ−3−ヒドロキシ酪酸エ
チルエステル実施例2Aにおいて、ジフルオロ酢酸エチ
ルエステルに代えて、クロロジフルオロ酢酸メチルエス
テルを用いたこと以外は、実施例2Aと同様の操作を行
った。但し、加水分解はリパーゼMYを用いて40分行
った。その結果、(R)−(+)−4−クロロ−4,4
−ジフルオロ−3−ヒドロキシ酪酸エチルエステルを加
水分解率24%で得た。δ3.7~4.1 (m, I H, CH) IR33
50 (OH) (cm) 5) (shaku) - (+) -4
-Chloro-4,4-difluoro-3-hydroxybutyric acid ethyl ester In Example 2A, the same operation as Example 2A was performed except that chlorodifluoroacetic acid methyl ester was used instead of difluoroacetic acid ethyl ester. . However, hydrolysis was performed using lipase MY for 40 minutes. As a result, (R)-(+)-4-chloro-4,4
-Difluoro-3-hydroxybutyric acid ethyl ester was obtained with a hydrolysis rate of 24%.
構造式 9H0
cciFz6HCHzCOCzHs
得られた生成物の物理的性質は、下記のとおりであった
。Structural formula: 9H0 cciFz6HCHzCOCzHs The physical properties of the obtained product were as follows.
分子量 202.5
沸点 109°C/ 65 mmm1I’HNMRδ
(ppm) 1.28 (t 、 J =7.211z
。Molecular weight 202.5 Boiling point 109°C/ 65 mm1I'HNMRδ
(ppm) 1.28 (t, J = 7.211z
.
3 H,0CH2CH3)。3H,0CH2CH3).
δ2.52 (dd、 J =7.8Hz、 J =
16.8Hz。δ2.52 (dd, J = 7.8Hz, J =
16.8Hz.
IH,C0HCHユHbco〕。IH, C0HCH Yu Hbco].
δ2.75 [dd、 J 〜4.8)1z、 J
= 16.811z。δ2.75 [dd, J ~4.8) 1z, J
= 16.811z.
I H,COHCH,lC○〕。IH, COHCH, lC○].
63.5〜4.0 (m、 I H,OH) 。63.5-4.0 (m, IH, OH).
δ4.13 (q、 J 〜1.2Hz、 21(。δ4.13 (q, J ~ 1.2Hz, 21(.
OCHzCH3) 。OCHzCH3).
δ4.45 (dq、 J 〜4.8Hz、 J =
7.8Hz。δ4.45 (dq, J ~4.8Hz, J =
7.8Hz.
LH,C旦0H)
IR3450(CH) (cm−’)実施例3におけ
る加水分解率並びに生成物の旋光度及び光学純度を下記
の第2表に示す。LH,Cdan0H) IR3450(CH) (cm-') The hydrolysis rate and the optical rotation and optical purity of the product in Example 3 are shown in Table 2 below.
(以下余白)
第2表
OH
■
*1 アルコール誘導体の=般式 : C(/!F2
CHR*
*2 1A)で得られた(+)−1−クロロ−1,1−
ジフルオロ−3−フェニル−2−プロパツール
*3 1B)で得られた(−)−1−クロロ−1,1〜
ジフルオロ−3−フェニル−2−プロパノール
実施例3A
(1)(旦)−(+)−1−フェニル−2−クロロ−2
,2−ジフルオロエタノールの合成H
マ
CCfFzCHPh
実施例3の(d)加水分解工程で得た1−フェニル−2
−クロロ−2,2−ジフルオロエチルアセタートを実施
例3のIB)と同様の操作を行って、(S)−(+)−
1−フェニル−2−クロロ−2,2−ジフルオロエタノ
ールを得た。このものの物理的性質は、(R)−(−)
−1−フェニル−2−クロロ−2,2−ジフルオロエタ
ノールと同じであった。(Left below) Table 2 OH ■ *1 =General formula of alcohol derivative: C(/!F2
(+)-1-chloro-1,1- obtained in CHR* *2 1A)
(-)-1-chloro-1,1~ obtained with difluoro-3-phenyl-2-propatol*3 1B)
Difluoro-3-phenyl-2-propanol Example 3A (1) (dan)-(+)-1-phenyl-2-chloro-2
, 2-difluoroethanol synthesis H MacCfFzCHPh 1-phenyl-2 obtained in the (d) hydrolysis step of Example 3
-Chloro-2,2-difluoroethyl acetate was treated in the same manner as in Example 3 IB) to obtain (S)-(+)-
1-phenyl-2-chloro-2,2-difluoroethanol was obtained. The physical properties of this are (R)-(-)
It was the same as -1-phenyl-2-chloro-2,2-difluoroethanol.
(2)(−)−1−クロロ−1,1−ジフルオロ−4−
フェニル−2−ブタノールの合成実施例3の2)で得た
1−クロロ−1,1−ジフルオロ−4−フェニル−2−
ブチルアセタートを実施例3のIB)と同様の操作を行
って、(−)−1−クロロ−1,1−ジフルオロ−4−
フェニル−2−ブタノールを得た。このものの物理的性
質は、(+)−1−クロロ−1,1−ジフルオロ−4−
フェニル−2−ブタノールと同じであった。(2)(-)-1-chloro-1,1-difluoro-4-
Synthesis of phenyl-2-butanol 1-chloro-1,1-difluoro-4-phenyl-2- obtained in Example 3-2)
Butyl acetate was treated in the same manner as in Example 3 IB) to obtain (-)-1-chloro-1,1-difluoro-4-
Phenyl-2-butanol was obtained. The physical properties of this substance are (+)-1-chloro-1,1-difluoro-4-
It was the same as phenyl-2-butanol.
(3)(S)−(−)−1−クロロ−1,1−ジフルオ
ロ−2−オクタツールの合成
○H
マ
CCI F z CHCb Ht 3
実施例3の3)で得た1−クロロ−1,1−ジフルオロ
−2−オクチルアセタートを実施例3のIB)と同様の
操作を行って、(Σ) −(−) −1−クロロ−1,
1−ジフルオロ−2−オクタツールを得た。このものの
物理的性質は、(且)−(+)−1−クロロ−1,1−
ジフルオロ−2−オクタツールと同じであった。(3) Synthesis of (S)-(-)-1-chloro-1,1-difluoro-2-octatool ○H MacCI F z CHCb Ht 3 1-chloro-1 obtained in Example 3-3) , 1-difluoro-2-octyl acetate was treated in the same manner as in Example 3 IB) to obtain (Σ) -(-) -1-chloro-1,
1-difluoro-2-octatool was obtained. The physical properties of this substance are (and)-(+)-1-chloro-1,1-
It was the same as difluoro-2-octatool.
(4)(S)−(−)−1−クロロ−1,1−ジフルオ
ロ−2−デカノールの合成
H
マ
CCj!FzCHCsH+を
実施例3の4)で得た1−クロロ−1,1−ジフルオロ
−2−デシルアセタートを実施例3のIB)と同様の操
作を行って、(旦) −(−) −1−クロロ−1,1
−ジフルオロ−2−デカノールを得た。このものの物理
的性質は、(且)−(+)−1−クロロ−1,1−ジフ
ルオロ−2−デカノールと同じであった。(4) Synthesis of (S)-(-)-1-chloro-1,1-difluoro-2-decanol H MaCCj! FzCHCsH+ was treated with 1-chloro-1,1-difluoro-2-decyl acetate obtained in 4) of Example 3 in the same manner as in IB) of Example 3 to obtain (d) -(-) -1-chloro. -1,1
-difluoro-2-decanol was obtained. The physical properties of this were the same as (and)-(+)-1-chloro-1,1-difluoro-2-decanol.
これらの結果を第2表Aに示す。These results are shown in Table 2A.
(以下余白)
第2表A
H
*1 アルコール誘導体の一般式: CCIFtCH
R*
(以下余白)
実施例4
(−)−1,1,1,2,2−ペンタフルオロ−5−フ
ェニル−3−ペンタノールの合成(a)ペンタフルオロ
プロピオン酸エチルエステル(5,8g、30ミリモル
)のテトラヒドロフラン溶液(30d)に、−70°C
でβ−フェネチルマグネシウムプロミド(β−フェネチ
ルグリニヤール試薬)(33ミリモル)のテトラヒドロ
フラン溶液をゆっくりと滴下した。この溶液を一70°
Cに保ち、3時間撹拌した後、飽和塩化アンモニウム水
溶液で反応を終了させた。生じた油状物をジエチルエー
テルで抽出し、溶媒を留去した後、生成物を減圧蒸留に
より精製した。(Left below) Table 2 A H *1 General formula of alcohol derivative: CCIFtCH
R* (blank below) Example 4 Synthesis of (-)-1,1,1,2,2-pentafluoro-5-phenyl-3-pentanol (a) Pentafluoropropionic acid ethyl ester (5.8 g, 30 mmol) in tetrahydrofuran solution (30d) at -70°C.
A solution of β-phenethylmagnesium bromide (β-phenethyl Grignard reagent) (33 mmol) in tetrahydrofuran was slowly added dropwise. Add this solution to -70°
After stirring for 3 hours while maintaining the temperature at C, the reaction was terminated with a saturated aqueous ammonium chloride solution. The resulting oil was extracted with diethyl ether, the solvent was distilled off, and the product was purified by vacuum distillation.
(b)水素化ホウ素ナトリウム(0,44g、11.6
ミリモル)のエタノール溶液(35d)を0°Cに保ち
、この溶液に(a)で製造したペンタフルオロエチルβ
−フェネチルケトン(2,2g、9.3ミリモル)のエ
タノール溶液(10d)を滴下した。(b) Sodium borohydride (0.44 g, 11.6
An ethanol solution (35d) of 1 mmol) was kept at 0 °C, and pentafluoroethyl β prepared in (a) was added to this solution.
- A solution of phenethyl ketone (2.2 g, 9.3 mmol) in ethanol (10 d) was added dropwise.
室温で24時間撹拌した後、溶媒を留去し、飽和塩化ア
ンモニウム水溶液で反応を終了させた。生じた油状物を
ジエチルエーテルで抽出し、溶媒を留去した後、ヘキサ
ンと酢酸エチルとの混合溶媒(3:1)を用いて生成物
をシリカゲルクロマトグラフィーで精製した。After stirring at room temperature for 24 hours, the solvent was distilled off, and the reaction was terminated with a saturated aqueous ammonium chloride solution. The resulting oil was extracted with diethyl ether, the solvent was distilled off, and the product was purified by silica gel chromatography using a mixed solvent of hexane and ethyl acetate (3:1).
(c)塩化メチレン(10戚)中の1.1,1゜2.2
−ペンタフルオロ−5−フェニル−3−ペンタノール(
2,2g、9ミリモル)及びピリジン(1,48++4
!、18.3ミリモル)の溶液に塩化アセチル(0,7
8m、11ミリモル)を滴下し、室温で3時間撹拌した
後、IN塩酸で反応を終了させた。生じた油状物を塩化
メチレンで抽出し、溶媒を留去した後、ヘキサンと酢酸
エチルとの混合溶媒(5:1)を用いて生成物をシリカ
ゲルクロマトグラフィーで精製した。(c) 1.1,1°2.2 in methylene chloride (10 relatives)
-pentafluoro-5-phenyl-3-pentanol (
2,2 g, 9 mmol) and pyridine (1,48++4
! , 18.3 mmol) of acetyl chloride (0,7
After stirring at room temperature for 3 hours, the reaction was terminated with IN hydrochloric acid. The resulting oil was extracted with methylene chloride, the solvent was distilled off, and the product was purified by silica gel chromatography using a mixed solvent of hexane and ethyl acetate (5:1).
(d)1,1,1,2.2−ペンタフルオロ−5−フェ
ニル−3−ペンチルアセタート(2,2g。(d) 1,1,1,2,2-pentafluoro-5-phenyl-3-pentylacetate (2,2 g.
7.6ミリモル)を蒸留水(80+1)に懸濁させた懸
濁液にリパーゼP(3,8g、天守製薬製)を懸濁させ
た。この懸濁液を40〜41°Cに保ら、43時間撹拌
した後、酢酸エチル(80d)を加えて撹拌し、この溶
液をセライト層を通して;濾過した。打機層を分離した
後、水層を再度酢酸エチルで抽出した。溶媒を留去した
後、生成物をヘキサンと酢酸エチルとの混合溶媒(10
:1)を用いてシリカゲルクロマトグラフィーで目的物
とアセタートを分離精製した。この実施例における加水
分解率は61%であった。またこのものの物理的性質は
下記の通りであった。Lipase P (3.8 g, manufactured by Tenshu Pharmaceutical Co., Ltd.) was suspended in a suspension prepared by suspending 7.6 mmol) in distilled water (80+1). The suspension was kept at 40-41°C and stirred for 43 hours, then ethyl acetate (80d) was added and stirred, and the solution was filtered through a bed of Celite. After separating the batter layer, the aqueous layer was extracted again with ethyl acetate. After distilling off the solvent, the product was dissolved in a mixed solvent of hexane and ethyl acetate (10
:1), the target product and acetate were separated and purified by silica gel chromatography. The hydrolysis rate in this example was 61%. The physical properties of this product were as follows.
分子量 242
Rf O,64(3: 1)
19F NMRδ(pl)m) 2.8(s、3 F
、CF3CFz)。Molecular weight 242 Rf O, 64 (3: 1) 19F NMR δ (pl) m) 2.8 (s, 3 F
, CF3CFz).
δ43.3 (dd、J(Cヱ−Fb)= 266Hz
。δ43.3 (dd, J(Cヱ-Fb)=266Hz
.
J(CF、F、C且)=7.5 Hz、 I F 。J (CF, F, C and) = 7.5 Hz, IF.
CF、C旦−Fb) 。CF, Cdan-Fb).
δ50.8 (dd、J(CF、Fb)−266)1z
。δ50.8 (dd, J(CF, Fb)-266)1z
.
J (CF−FbCH)−13,2Hz、 I F。J (CF-FbCH)-13,2Hz, IF.
CFsCF−Fb)
’HNMRδ(ppm) 2.0 (m、 3 H,C
HzPh。CFsCF-Fb) 'HNMRδ (ppm) 2.0 (m, 3H,C
HzPh.
OH)。OH).
δ2.8(m、2H,C且zcHzPh)。δ2.8 (m, 2H, C[zcHzPh).
δ 3.9 (m+ I H,CH(OH))。δ 3.9 (m+IH, CH(OH)).
δ 7.0〜7.4 (m、 5 H,Ph)I R3
400(OH) (cm−’)同様の方法で(ただし
、上記(a)でβ−フェネチルグリニヤール試薬の代わ
りにn−へキシルグリニヤール試薬を使用)、(+)−
1,1,1゜2.2−ペンタフルオロ−3−ノナノール
が、5時間で24%の加水分解率で得られた。またこの
ものの物理的性質は下記の通りであった。δ 7.0-7.4 (m, 5 H, Ph) I R3
400(OH) (cm-') in a similar manner (but using n-hexyl Grignard reagent instead of β-phenethyl Grignard reagent in (a) above), (+)-
1,1,1°2.2-pentafluoro-3-nonanol was obtained with a hydrolysis rate of 24% in 5 hours. The physical properties of this product were as follows.
分子量 234
沸点 73〜74 / 50 mm11g”F N
MRδ(ppm) 4.0 (s、 3 F 、 CF
3)。Molecular weight 234 Boiling point 73-74 / 50 mm11g”F N
MRδ (ppm) 4.0 (s, 3F, CF
3).
δ44.0 (dd、 J(CF−Fb)〜269.5
tlz。δ44.0 (dd, J(CF-Fb)~269.5
tlz.
J(CF、F、C且)=7.5Hz、 I F。J (CF, F, C and) = 7.5Hz, IF.
CF3CF−Fb) 。CF3CF-Fb).
δ52.3 (dd、 J (CF−Fb)= 269
、5Hz。δ52.3 (dd, J (CF-Fb) = 269
, 5Hz.
J(CF、FbC且)= 16.0Hz、 I F。J(CF, FbC and) = 16.0Hz, IF.
CF 3 CF −F b )
’HNMRδ(ppm)1.0 (brt、 3 H,
CH3)。CF3CF-Fb)'HNMRδ(ppm)1.0 (brt, 3H,
CH3).
61、2〜2.2 (m、 10 H,(CHz)s)
。61, 2-2.2 (m, 10 H, (CHz)s)
.
63.2 (d、J(OHCH)=8.4Hz、OH
)。63.2 (d, J (OHCH) = 8.4Hz, OH
).
64.17 (m、 I H,CI−I (OH))I
R3400(OH) (cm−’)また、同様に方法
で(ただし、上記(a)でβ−フェネチルグリニヤール
試薬の代わりにn−オクチルグリニヤール試薬を使用し
、(C)で塩化アセチルの代わりに塩化イソブチリルを
使用し、また(d)でリパーゼPの代わりにリパーゼM
Y(泡糊産業製)を使用)、(+)−1,1,1,2゜
2−ペンタフルオロ−3−ウンデカノールが、186時
間で60%の加水分解率で得られた。またこのものの物
理的性質は下記の通りであった。64.17 (m, I H, CI-I (OH)) I
R3400(OH) (cm-') can also be used in the same manner (but using n-octyl Grignard reagent instead of β-phenethyl Grignard reagent in (a) above, and using chloride instead of acetyl chloride in (C)). using isobutyryl and lipase M instead of lipase P in (d).
(+)-1,1,1,2°2-pentafluoro-3-undecanol was obtained with a hydrolysis rate of 60% in 186 hours. The physical properties of this product were as follows.
分子量 262
沸点 110〜112/60mmHgI9F NM
Rδ(ppm) 4.0 (s、 3 F 、 CF
3)。Molecular weight 262 Boiling point 110-112/60mmHgI9F NM
Rδ (ppm) 4.0 (s, 3F, CF
3).
δ43.6 [dd、 J (CF−Fb)= 268
Hz。δ43.6 [dd, J (CF-Fb) = 268
Hz.
J (CF−FbCH)=7.5Hz、I F 。J (CF-FbCH) = 7.5Hz, IF.
CFICF、Fb)。CFICF, Fb).
652.0 (dd、J(CF−Fb)=268Hz。652.0 (dd, J (CF-Fb) = 268Hz.
J(CF−FbCH)=16.0HzlI F。J(CF-FbCH)=16.0HzlIF.
CF z CF −F b )
’HNMRδ(ppm) 0.9 (m、3 H、CH
3) 。CF z CF -F b )'HNMRδ (ppm) 0.9 (m, 3 H, CH
3).
61.33(m、 14 Hl(CHz)、)。61.33 (m, 14 Hl (CHz),).
δ3.6 (t、J(C且CH2) = 6. OIl
z。δ3.6 (t, J(C and CH2) = 6.OIl
z.
CH(OH))。CH(OH)).
δ 4゜O(bs、 L H,OH)
IR3400(OH) (cm−’)得られた化合物
の旋光度及び光学純度を第3表に示す。δ 4°O (bs, L H, OH) IR3400 (OH) (cm-') The optical rotation and optical purity of the obtained compound are shown in Table 3.
第3表
?1
*アルコール誘導体の一般式: C,F、CHR*
実施例5
実施例1と同様に操作し、(C)工程に使用するアシル
化剤(アシル基をR’ Coで示す)の種類や酵素の種
類を変動させて1−フェニル−2゜2−ジフルオロエタ
ノールを製造し、光学純度を測定し、結果を下記の第4
表に示す。Table 3? 1 *General formula of alcohol derivative: C, F, CHR* Example 5 The same procedure as in Example 1 was carried out, and the type and enzyme of the acylating agent (acyl group is represented by R' Co) used in step (C) were determined. 1-phenyl-2゜2-difluoroethanol was produced by varying the type of
Shown in the table.
(以下余白)
第4表
(以下余白)
〔発明の効果〕
叙上の如く、本発明に係る光学活性ジフルオロアルコー
ル誘導体は、著しく問い光学純度を存し、液晶を始め各
種の医薬品等、あるいはその中間体などとして幅広くか
つ有効な利用が期待される。(Hereinafter in the margin) Table 4 (Hereinafter in the margin) [Effects of the invention] As mentioned above, the optically active difluoroalcohol derivative according to the present invention has extremely poor optical purity, and can be used in various pharmaceutical products such as liquid crystals, etc. It is expected to be widely and effectively used as an intermediate.
Claims (1)
子数7〜10のアラルキル基、炭素原子数6〜10のア
リール基あるいは▲数式、化学式、表等があります▼ (式中R^1は水素あるいは炭素原子数1〜4のアルキ
ル基であり、R^2は炭素原子数1〜10のアルキル基
である)を示し、Xは水素、塩素、臭素あるいはC_n
X^1_2_n_+_1(nは1〜8の整数であり、X
^1はフッ素、塩素及び臭素から選ばれた少なくとも一
種の原子である)を示す〕で表される光学活性なジフル
オロアルコール誘導体。(1) General formula: ▲ Numerical formula, chemical formula, table, etc. ▼ [In the formula, R is an alkyl group having 1 to 10 carbon atoms, an aralkyl group having 7 to 10 carbon atoms, or an aryl group having 6 to 10 carbon atoms. There are groups or ▲mathematical formulas, chemical formulas, tables, etc.▼ (in the formula, R^1 is hydrogen or an alkyl group having 1 to 4 carbon atoms, and R^2 is an alkyl group having 1 to 10 carbon atoms). and X is hydrogen, chlorine, bromine or C_n
X^1_2_n_+_1 (n is an integer from 1 to 8,
^1 is at least one type of atom selected from fluorine, chlorine and bromine).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP63059159A JP2509282B2 (en) | 1987-09-24 | 1988-03-12 | Optically active difluoro alcohol derivative |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23729387 | 1987-09-24 | ||
JP62-237293 | 1987-09-24 | ||
JP63059159A JP2509282B2 (en) | 1987-09-24 | 1988-03-12 | Optically active difluoro alcohol derivative |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH01163143A true JPH01163143A (en) | 1989-06-27 |
JP2509282B2 JP2509282B2 (en) | 1996-06-19 |
Family
ID=26400209
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP63059159A Expired - Fee Related JP2509282B2 (en) | 1987-09-24 | 1988-03-12 | Optically active difluoro alcohol derivative |
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JP (1) | JP2509282B2 (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0427396A2 (en) * | 1989-11-08 | 1991-05-15 | Showa Shell Sekiyu Kabushiki Kaisha | Process for producing optically active fluorine-containing 3-hydroxybutyric acid esters |
US5663448A (en) * | 1993-06-04 | 1997-09-02 | Merrell Pharmaceuticals Inc. | Aromatic acetylcholinesterase inhibitors |
US6096908A (en) * | 1992-01-31 | 2000-08-01 | Kashima Oil Company | Optically active fluorinated compounds |
JP2007506673A (en) * | 2003-07-01 | 2007-03-22 | バイエル・クロツプサイエンス・アクチエンゲゼルシヤフト | Process for preparing alkyl esters of difluoroacetoacetic acid |
US7585998B2 (en) | 2003-07-01 | 2009-09-08 | Bayer Cropscience Ag | Method for producing difluoro-acetyl-acetic acid alkylesters |
WO2010094746A3 (en) * | 2009-02-19 | 2010-10-21 | Solvay Fluor Gmbh | Compositions of esters of fluorosubstituted alcanoic acids |
CN113698295A (en) * | 2021-09-16 | 2021-11-26 | 石家庄圣泰化工有限公司 | Synthetic method of 2, 2-difluoroethyl acetate |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5916844A (en) * | 1982-07-21 | 1984-01-28 | Asahi Chem Ind Co Ltd | Novel optically active compound |
JPS60161936A (en) * | 1984-01-31 | 1985-08-23 | Asahi Glass Co Ltd | Production of alpha-(perfluoroalkyl) carbinol |
JPS61170734A (en) * | 1985-01-25 | 1986-08-01 | Toray Ind Inc | Preparation of fluoroalkyl alpha-chloroacrylate |
-
1988
- 1988-03-12 JP JP63059159A patent/JP2509282B2/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5916844A (en) * | 1982-07-21 | 1984-01-28 | Asahi Chem Ind Co Ltd | Novel optically active compound |
JPS60161936A (en) * | 1984-01-31 | 1985-08-23 | Asahi Glass Co Ltd | Production of alpha-(perfluoroalkyl) carbinol |
JPS61170734A (en) * | 1985-01-25 | 1986-08-01 | Toray Ind Inc | Preparation of fluoroalkyl alpha-chloroacrylate |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0427396A2 (en) * | 1989-11-08 | 1991-05-15 | Showa Shell Sekiyu Kabushiki Kaisha | Process for producing optically active fluorine-containing 3-hydroxybutyric acid esters |
US6096908A (en) * | 1992-01-31 | 2000-08-01 | Kashima Oil Company | Optically active fluorinated compounds |
US5663448A (en) * | 1993-06-04 | 1997-09-02 | Merrell Pharmaceuticals Inc. | Aromatic acetylcholinesterase inhibitors |
JP2007506673A (en) * | 2003-07-01 | 2007-03-22 | バイエル・クロツプサイエンス・アクチエンゲゼルシヤフト | Process for preparing alkyl esters of difluoroacetoacetic acid |
US7585998B2 (en) | 2003-07-01 | 2009-09-08 | Bayer Cropscience Ag | Method for producing difluoro-acetyl-acetic acid alkylesters |
JP4727576B2 (en) * | 2003-07-01 | 2011-07-20 | バイエル・クロツプサイエンス・アクチエンゲゼルシヤフト | Process for preparing alkyl esters of difluoroacetoacetic acid |
WO2010094746A3 (en) * | 2009-02-19 | 2010-10-21 | Solvay Fluor Gmbh | Compositions of esters of fluorosubstituted alcanoic acids |
CN113698295A (en) * | 2021-09-16 | 2021-11-26 | 石家庄圣泰化工有限公司 | Synthetic method of 2, 2-difluoroethyl acetate |
Also Published As
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---|---|
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