EP3880662A1 - Nouvelle voie de synthese de diazirines, enrichies ou non en azote-15 - Google Patents
Nouvelle voie de synthese de diazirines, enrichies ou non en azote-15Info
- Publication number
- EP3880662A1 EP3880662A1 EP19804716.9A EP19804716A EP3880662A1 EP 3880662 A1 EP3880662 A1 EP 3880662A1 EP 19804716 A EP19804716 A EP 19804716A EP 3880662 A1 EP3880662 A1 EP 3880662A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- formula
- nmr
- aliphatic chain
- mhz
- diazirine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- QGZKDVFQNNGYKY-OUBTZVSYSA-N Ammonia-15N Chemical compound [15NH3] QGZKDVFQNNGYKY-OUBTZVSYSA-N 0.000 title claims abstract description 81
- 150000004845 diazirines Chemical class 0.000 title claims abstract description 70
- 230000015572 biosynthetic process Effects 0.000 title claims description 30
- 238000003786 synthesis reaction Methods 0.000 title claims description 30
- 230000037361 pathway Effects 0.000 title description 2
- 238000000034 method Methods 0.000 claims abstract description 141
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 88
- 150000002466 imines Chemical class 0.000 claims abstract description 79
- 150000001413 amino acids Chemical class 0.000 claims abstract description 63
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 35
- 238000006243 chemical reaction Methods 0.000 claims abstract description 35
- 230000001590 oxidative effect Effects 0.000 claims abstract description 26
- 239000007800 oxidant agent Substances 0.000 claims abstract description 24
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 claims abstract description 23
- 229910052740 iodine Inorganic materials 0.000 claims abstract description 23
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 114
- YXHKONLOYHBTNS-UHFFFAOYSA-N Diazomethane Chemical compound C=[N+]=[N-] YXHKONLOYHBTNS-UHFFFAOYSA-N 0.000 claims description 83
- 125000001931 aliphatic group Chemical group 0.000 claims description 81
- 229910052717 sulfur Inorganic materials 0.000 claims description 70
- 238000004587 chromatography analysis Methods 0.000 claims description 65
- 150000001875 compounds Chemical class 0.000 claims description 64
- 229940024606 amino acid Drugs 0.000 claims description 60
- 235000001014 amino acid Nutrition 0.000 claims description 60
- -1 0-benzyl-DL- serine Chemical compound 0.000 claims description 53
- 229910052799 carbon Inorganic materials 0.000 claims description 47
- 125000003118 aryl group Chemical group 0.000 claims description 42
- 230000008569 process Effects 0.000 claims description 37
- 229910052760 oxygen Inorganic materials 0.000 claims description 36
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 33
- 125000000217 alkyl group Chemical group 0.000 claims description 30
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims description 27
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 27
- 229910052736 halogen Inorganic materials 0.000 claims description 26
- 150000002367 halogens Chemical class 0.000 claims description 26
- 229910052757 nitrogen Inorganic materials 0.000 claims description 24
- 239000002904 solvent Substances 0.000 claims description 22
- 150000003839 salts Chemical class 0.000 claims description 20
- 229910052739 hydrogen Inorganic materials 0.000 claims description 17
- 239000000203 mixture Substances 0.000 claims description 16
- 125000000623 heterocyclic group Chemical group 0.000 claims description 14
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 14
- 125000000753 cycloalkyl group Chemical group 0.000 claims description 13
- 125000004433 nitrogen atom Chemical group N* 0.000 claims description 13
- 239000012453 solvate Substances 0.000 claims description 13
- 239000004472 Lysine Substances 0.000 claims description 12
- ZBIKORITPGTTGI-UHFFFAOYSA-N [acetyloxy(phenyl)-$l^{3}-iodanyl] acetate Chemical compound CC(=O)OI(OC(C)=O)C1=CC=CC=C1 ZBIKORITPGTTGI-UHFFFAOYSA-N 0.000 claims description 12
- 125000001072 heteroaryl group Chemical group 0.000 claims description 12
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 claims description 12
- 229960004441 tyrosine Drugs 0.000 claims description 12
- 239000002253 acid Substances 0.000 claims description 11
- 235000019270 ammonium chloride Nutrition 0.000 claims description 11
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 claims description 11
- 229960002989 glutamic acid Drugs 0.000 claims description 10
- 150000001412 amines Chemical group 0.000 claims description 9
- 229960005190 phenylalanine Drugs 0.000 claims description 9
- 238000005222 photoaffinity labeling Methods 0.000 claims description 9
- 238000000746 purification Methods 0.000 claims description 9
- KDXKERNSBIXSRK-UHFFFAOYSA-N Lysine Natural products NCCCCC(N)C(O)=O KDXKERNSBIXSRK-UHFFFAOYSA-N 0.000 claims description 8
- 239000004220 glutamic acid Substances 0.000 claims description 8
- 125000002088 tosyl group Chemical group [H]C1=C([H])C(=C([H])C([H])=C1C([H])([H])[H])S(*)(=O)=O 0.000 claims description 8
- 229960004799 tryptophan Drugs 0.000 claims description 8
- QEFRNWWLZKMPFJ-UHFFFAOYSA-N L-methionine sulphoxide Natural products CS(=O)CCC(N)C(O)=O QEFRNWWLZKMPFJ-UHFFFAOYSA-N 0.000 claims description 7
- 239000007810 chemical reaction solvent Substances 0.000 claims description 7
- 230000002102 hyperpolarization Effects 0.000 claims description 7
- 229910000069 nitrogen hydride Inorganic materials 0.000 claims description 7
- 229960001153 serine Drugs 0.000 claims description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- DATAGRPVKZEWHA-YFKPBYRVSA-N N(5)-ethyl-L-glutamine Chemical compound CCNC(=O)CC[C@H]([NH3+])C([O-])=O DATAGRPVKZEWHA-YFKPBYRVSA-N 0.000 claims description 6
- 229960001230 asparagine Drugs 0.000 claims description 6
- 150000001728 carbonyl compounds Chemical class 0.000 claims description 6
- KDXKERNSBIXSRK-YFKPBYRVSA-N L-lysine Chemical compound NCCCC[C@H](N)C(O)=O KDXKERNSBIXSRK-YFKPBYRVSA-N 0.000 claims description 5
- 241000801593 Pida Species 0.000 claims description 5
- MTCFGRXMJLQNBG-UHFFFAOYSA-N Serine Natural products OCC(N)C(O)=O MTCFGRXMJLQNBG-UHFFFAOYSA-N 0.000 claims description 5
- 239000004473 Threonine Substances 0.000 claims description 5
- 125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 claims description 5
- 229960002885 histidine Drugs 0.000 claims description 5
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 5
- COLNVLDHVKWLRT-UHFFFAOYSA-N phenylalanine Natural products OC(=O)C(N)CC1=CC=CC=C1 COLNVLDHVKWLRT-UHFFFAOYSA-N 0.000 claims description 5
- 229960002898 threonine Drugs 0.000 claims description 5
- DLMYFMLKORXJPO-FQEVSTJZSA-N (2R)-2-amino-3-[(triphenylmethyl)thio]propanoic acid Chemical compound C=1C=CC=CC=1C(C=1C=CC=CC=1)(SC[C@H](N)C(O)=O)C1=CC=CC=C1 DLMYFMLKORXJPO-FQEVSTJZSA-N 0.000 claims description 4
- PZNQZSRPDOEBMS-QMMMGPOBSA-N 4-iodo-L-phenylalanine Chemical compound OC(=O)[C@@H](N)CC1=CC=C(I)C=C1 PZNQZSRPDOEBMS-QMMMGPOBSA-N 0.000 claims description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical group CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 4
- 239000004471 Glycine Substances 0.000 claims description 4
- DATAGRPVKZEWHA-UHFFFAOYSA-N L-gamma-glutamyl-n-ethylamine Natural products CCNC(=O)CCC(N)C(O)=O DATAGRPVKZEWHA-UHFFFAOYSA-N 0.000 claims description 4
- QEFRNWWLZKMPFJ-YGVKFDHGSA-N L-methionine S-oxide Chemical compound CS(=O)CC[C@H](N)C(O)=O QEFRNWWLZKMPFJ-YGVKFDHGSA-N 0.000 claims description 4
- 229960002433 cysteine Drugs 0.000 claims description 4
- 125000001041 indolyl group Chemical group 0.000 claims description 4
- 229960003136 leucine Drugs 0.000 claims description 4
- MTCFGRXMJLQNBG-REOHCLBHSA-N (2S)-2-Amino-3-hydroxypropansäure Chemical compound OC[C@H](N)C(O)=O MTCFGRXMJLQNBG-REOHCLBHSA-N 0.000 claims description 3
- GHBAYRBVXCRIHT-VIFPVBQESA-N S-benzyl-L-cysteine zwitterion Chemical compound OC(=O)[C@@H](N)CSCC1=CC=CC=C1 GHBAYRBVXCRIHT-VIFPVBQESA-N 0.000 claims description 3
- 150000001298 alcohols Chemical class 0.000 claims description 3
- 229960005261 aspartic acid Drugs 0.000 claims description 3
- 238000005119 centrifugation Methods 0.000 claims description 3
- XUJNEKJLAYXESH-UHFFFAOYSA-N cysteine Natural products SCC(N)C(O)=O XUJNEKJLAYXESH-UHFFFAOYSA-N 0.000 claims description 3
- 235000018417 cysteine Nutrition 0.000 claims description 3
- 238000004821 distillation Methods 0.000 claims description 3
- 230000008030 elimination Effects 0.000 claims description 3
- 238000003379 elimination reaction Methods 0.000 claims description 3
- 229960000310 isoleucine Drugs 0.000 claims description 3
- 229960004452 methionine Drugs 0.000 claims description 3
- 125000000896 monocarboxylic acid group Chemical group 0.000 claims description 3
- 229960004295 valine Drugs 0.000 claims description 3
- 239000004475 Arginine Substances 0.000 claims description 2
- XUJNEKJLAYXESH-REOHCLBHSA-N L-Cysteine Chemical compound SC[C@H](N)C(O)=O XUJNEKJLAYXESH-REOHCLBHSA-N 0.000 claims description 2
- ODKSFYDXXFIFQN-BYPYZUCNSA-P L-argininium(2+) Chemical compound NC(=[NH2+])NCCC[C@H]([NH3+])C(O)=O ODKSFYDXXFIFQN-BYPYZUCNSA-P 0.000 claims description 2
- FFEARJCKVFRZRR-BYPYZUCNSA-N L-methionine Chemical compound CSCC[C@H](N)C(O)=O FFEARJCKVFRZRR-BYPYZUCNSA-N 0.000 claims description 2
- AYFVYJQAPQTCCC-GBXIJSLDSA-N L-threonine Chemical compound C[C@@H](O)[C@H](N)C(O)=O AYFVYJQAPQTCCC-GBXIJSLDSA-N 0.000 claims description 2
- AYFVYJQAPQTCCC-UHFFFAOYSA-N Threonine Natural products CC(O)C(N)C(O)=O AYFVYJQAPQTCCC-UHFFFAOYSA-N 0.000 claims description 2
- ODKSFYDXXFIFQN-UHFFFAOYSA-N arginine Natural products OC(=O)C(N)CCCNC(N)=N ODKSFYDXXFIFQN-UHFFFAOYSA-N 0.000 claims description 2
- 229960003121 arginine Drugs 0.000 claims description 2
- 125000000879 imine group Chemical group 0.000 claims description 2
- 229930182817 methionine Natural products 0.000 claims description 2
- 125000004434 sulfur atom Chemical group 0.000 claims description 2
- 239000004474 valine Substances 0.000 claims description 2
- 125000000325 methylidene group Chemical group [H]C([H])=* 0.000 claims 10
- QPDMZTKHTFOAPP-UHFFFAOYSA-N 2-amino-3-[tert-butyl(diphenyl)silyl]oxypropanoic acid Chemical compound C=1C=CC=CC=1[Si](OCC(N)C(O)=O)(C(C)(C)C)C1=CC=CC=C1 QPDMZTKHTFOAPP-UHFFFAOYSA-N 0.000 claims 1
- QNAYBMKLOCPYGJ-REOHCLBHSA-N L-alanine Chemical compound C[C@H](N)C(O)=O QNAYBMKLOCPYGJ-REOHCLBHSA-N 0.000 claims 1
- DTERQYGMUDWYAZ-ZETCQYMHSA-N N(6)-acetyl-L-lysine Chemical compound CC(=O)NCCCC[C@H]([NH3+])C([O-])=O DTERQYGMUDWYAZ-ZETCQYMHSA-N 0.000 claims 1
- AGPKZVBTJJNPAG-UHFFFAOYSA-N isoleucine Natural products CCC(C)C(N)C(O)=O AGPKZVBTJJNPAG-UHFFFAOYSA-N 0.000 claims 1
- 239000011630 iodine Substances 0.000 abstract description 7
- 238000002059 diagnostic imaging Methods 0.000 abstract description 2
- 238000001308 synthesis method Methods 0.000 abstract description 2
- 238000002372 labelling Methods 0.000 abstract 1
- 238000005580 one pot reaction Methods 0.000 abstract 1
- 238000005481 NMR spectroscopy Methods 0.000 description 178
- OFBQJSOFQDEBGM-UHFFFAOYSA-N Pentane Chemical compound CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 88
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 72
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 56
- 239000000741 silica gel Substances 0.000 description 51
- 229910002027 silica gel Inorganic materials 0.000 description 51
- 239000003921 oil Substances 0.000 description 41
- 235000019198 oils Nutrition 0.000 description 41
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 32
- 238000001437 electrospray ionisation time-of-flight quadrupole detection Methods 0.000 description 31
- 239000011734 sodium Substances 0.000 description 29
- 125000001570 methylene group Chemical group [H]C([H])([*:1])[*:2] 0.000 description 27
- 239000000243 solution Substances 0.000 description 21
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 20
- 239000007787 solid Substances 0.000 description 19
- MTZQAGJQAFMTAQ-UHFFFAOYSA-N ethyl benzoate Chemical compound CCOC(=O)C1=CC=CC=C1 MTZQAGJQAFMTAQ-UHFFFAOYSA-N 0.000 description 15
- 238000002844 melting Methods 0.000 description 15
- 230000008018 melting Effects 0.000 description 15
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 14
- KHBQMWCZKVMBLN-UHFFFAOYSA-N Benzenesulfonamide Chemical compound NS(=O)(=O)C1=CC=CC=C1 KHBQMWCZKVMBLN-UHFFFAOYSA-N 0.000 description 14
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 13
- KXDHJXZQYSOELW-UHFFFAOYSA-M Carbamate Chemical class NC([O-])=O KXDHJXZQYSOELW-UHFFFAOYSA-M 0.000 description 12
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- DUWWHGPELOTTOE-UHFFFAOYSA-N n-(5-chloro-2,4-dimethoxyphenyl)-3-oxobutanamide Chemical compound COC1=CC(OC)=C(NC(=O)CC(C)=O)C=C1Cl DUWWHGPELOTTOE-UHFFFAOYSA-N 0.000 description 12
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 11
- 239000011541 reaction mixture Substances 0.000 description 11
- 239000000377 silicon dioxide Substances 0.000 description 10
- DLFVBJFMPXGRIB-UHFFFAOYSA-N Acetamide Chemical compound CC(N)=O DLFVBJFMPXGRIB-UHFFFAOYSA-N 0.000 description 9
- IAZDPXIOMUYVGZ-WFGJKAKNSA-N Dimethyl sulfoxide Chemical compound [2H]C([2H])([2H])S(=O)C([2H])([2H])[2H] IAZDPXIOMUYVGZ-WFGJKAKNSA-N 0.000 description 8
- 125000004432 carbon atom Chemical group C* 0.000 description 8
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- 229910052786 argon Inorganic materials 0.000 description 7
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- 239000001257 hydrogen Substances 0.000 description 7
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
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- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 6
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- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 5
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- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 description 5
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 5
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- 125000001424 substituent group Chemical group 0.000 description 5
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- 239000013078 crystal Substances 0.000 description 3
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- 238000003760 magnetic stirring Methods 0.000 description 3
- HZVOZRGWRWCICA-UHFFFAOYSA-N methanediyl Chemical compound [CH2] HZVOZRGWRWCICA-UHFFFAOYSA-N 0.000 description 3
- 125000000636 p-nitrophenyl group Chemical group [H]C1=C([H])C(=C([H])C([H])=C1*)[N+]([O-])=O 0.000 description 3
- 239000012071 phase Substances 0.000 description 3
- NLKNQRATVPKPDG-UHFFFAOYSA-M potassium iodide Chemical compound [K+].[I-] NLKNQRATVPKPDG-UHFFFAOYSA-M 0.000 description 3
- 239000002243 precursor Substances 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 3
- QLNJFJADRCOGBJ-UHFFFAOYSA-N propionamide Chemical compound CCC(N)=O QLNJFJADRCOGBJ-UHFFFAOYSA-N 0.000 description 3
- 230000002441 reversible effect Effects 0.000 description 3
- 239000011593 sulfur Substances 0.000 description 3
- 150000003568 thioethers Chemical group 0.000 description 3
- QDGAVODICPCDMU-UHFFFAOYSA-N 2-amino-3-[3-[bis(2-chloroethyl)amino]phenyl]propanoic acid Chemical compound OC(=O)C(N)CC1=CC=CC(N(CCCl)CCCl)=C1 QDGAVODICPCDMU-UHFFFAOYSA-N 0.000 description 2
- CMWKITSNTDAEDT-UHFFFAOYSA-N 2-nitrobenzaldehyde Chemical compound [O-][N+](=O)C1=CC=CC=C1C=O CMWKITSNTDAEDT-UHFFFAOYSA-N 0.000 description 2
- ZETIVVHRRQLWFW-UHFFFAOYSA-N 3-nitrobenzaldehyde Chemical compound [O-][N+](=O)C1=CC=CC(C=O)=C1 ZETIVVHRRQLWFW-UHFFFAOYSA-N 0.000 description 2
- KTFKRVMXIVSARW-UHFFFAOYSA-N 4-acetylbenzaldehyde Chemical compound CC(=O)C1=CC=C(C=O)C=C1 KTFKRVMXIVSARW-UHFFFAOYSA-N 0.000 description 2
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- 125000001715 oxadiazolyl group Chemical group 0.000 description 1
- 125000002971 oxazolyl group Chemical group 0.000 description 1
- 150000002923 oximes Chemical class 0.000 description 1
- 230000007170 pathology Effects 0.000 description 1
- 125000001147 pentyl group Chemical group C(CCCC)* 0.000 description 1
- 239000002304 perfume Substances 0.000 description 1
- 239000006187 pill Substances 0.000 description 1
- 125000003386 piperidinyl group Chemical group 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000002600 positron emission tomography Methods 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910000027 potassium carbonate Inorganic materials 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 125000001325 propanoyl group Chemical group O=C([*])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000002568 propynyl group Chemical group [*]C#CC([H])([H])[H] 0.000 description 1
- 230000004850 protein–protein interaction Effects 0.000 description 1
- 125000003072 pyrazolidinyl group Chemical group 0.000 description 1
- 125000003226 pyrazolyl group Chemical group 0.000 description 1
- 125000002098 pyridazinyl group Chemical group 0.000 description 1
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 1
- 125000000719 pyrrolidinyl group Chemical group 0.000 description 1
- 125000000168 pyrrolyl group Chemical group 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 229910052701 rubidium Inorganic materials 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 239000012047 saturated solution Substances 0.000 description 1
- 125000002914 sec-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 125000001174 sulfone group Chemical group 0.000 description 1
- 150000003462 sulfoxides Chemical class 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- YBRBMKDOPFTVDT-UHFFFAOYSA-N tert-butylamine Chemical compound CC(C)(C)N YBRBMKDOPFTVDT-UHFFFAOYSA-N 0.000 description 1
- 125000005931 tert-butyloxycarbonyl group Chemical group [H]C([H])([H])C(OC(*)=O)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 125000003831 tetrazolyl group Chemical group 0.000 description 1
- 229940026510 theanine Drugs 0.000 description 1
- 125000001113 thiadiazolyl group Chemical group 0.000 description 1
- 125000001984 thiazolidinyl group Chemical group 0.000 description 1
- 125000000335 thiazolyl group Chemical group 0.000 description 1
- 125000001544 thienyl group Chemical group 0.000 description 1
- 150000003573 thiols Chemical group 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 150000003608 titanium Chemical class 0.000 description 1
- LMYRWZFENFIFIT-UHFFFAOYSA-N toluene-4-sulfonamide Chemical compound CC1=CC=C(S(N)(=O)=O)C=C1 LMYRWZFENFIFIT-UHFFFAOYSA-N 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 125000001425 triazolyl group Chemical group 0.000 description 1
- 125000002023 trifluoromethyl group Chemical group FC(F)(F)* 0.000 description 1
- OUYCCCASQSFEME-UHFFFAOYSA-N tyrosine Natural products OC(=O)C(N)CC1=CC=C(O)C=C1 OUYCCCASQSFEME-UHFFFAOYSA-N 0.000 description 1
- 238000009281 ultraviolet germicidal irradiation Methods 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D229/00—Heterocyclic compounds containing rings of less than five members having two nitrogen atoms as the only ring hetero atoms
- C07D229/02—Heterocyclic compounds containing rings of less than five members having two nitrogen atoms as the only ring hetero atoms containing three-membered rings
Definitions
- the present invention relates to a new method for the synthesis of diazirines, enriched or not with nitrogen-15, from amino acids or imines via a synthesis method in a single pot.
- the present invention also relates to the preparation of a solution of ammonia NH3 and 15 to novel compounds diazirines, enriched or not enriched in nitrogen-15.
- These diazirines can be advantageously used in photoaffinity labeling ("photoaffinity labeling").
- the 15-N2 diazirines hyperpolarization can be used.
- Diazirines are three-membered heterocycles with a nitrogen-nitrogen double bond and an sp 3 carbon. They are generally obtained in several stages from carbonyl compounds.
- diaziridines in 2 or 3 stages by passing through imines or oximes provided with leaving groups.
- the corresponding diaziridines are then oxidized to diazirines via an oxidant (Hill, JR; Robertson, AABJ Med. Chem. 2018, 61, 6945-6963).
- Diazirines have been known since the 1980s as being very reactive carbene precursors. This property has enabled the development of the use of diazirines as photoaffinity labeling reagents (“photoaffinity labeling” and “photo-crosslinking”), the carbene generated quickly forming a covalent bond with a nearby atom. These methods allow in particular to identify active sites and to study protein-protein interactions.
- Diazirines as photoactive probes have been widely used, for example for the design of organic electronic components (WO2016-049123), in cosmetic methods of treating human body odors (WO2016-096897) and of treatment for attenuation of wrinkles (W02010-076490), of photolabile substances capturing perfumes (WO2017-045891) or also as bio-adhesives (W02014-081391).
- Diazirines labeled with nitrogen-15, noted 15 N2-diazirines, can be used in hyperpolarization, a promising NMR technique for MRI imaging.
- NMR Magnetic resonance
- the hyperpolarization of 15 N 2 -diazirines uses the SABER-SHEATH technique (Signal Amplification by Reversible Exchange - Shield Enables Alignment Transfer to Heteronuclei) which is carried out using an organometallic catalyst based on iridium and parahydrogen (pF; available from hydrogen H 2 ).
- This polarization is transferred to the 15 N 2 -diazirines thanks to the scalar couplings existing between the pF and the nitrogen atoms of the diazirine, following exchanges of reversible ligands. This then results in a spectacular increase in the NMR signal intensity of nitrogen-15 (up to approximately 15,000 times).
- this hyperpolarization can also be transferred to the proton, which makes it possible to envisage its use in MRI, in particular in vivo [Shen, K .; Logan, AWJ; Colell, JFP; Bae, J .; Ortiz Jr., GX; Theis, T .; Warren, WS; Malcolmson, SJ; Wang, Q. Angew. Chem. Int. Ed.
- diazirines The synthesis of diazirines is generally carried out in two or three stages, with low overall yields and has major drawbacks such as the use of dangerous reagents and restrictive reaction conditions such as the use of liquid ammonia (condensed ammonia gas at a temperature of -78 ° C).
- Ls N-HOSA hydroxylamine-O-sulfonic acid
- CISO 3 H chlorosulfonic acid
- Diazirines are obtained with good yields of up to 99%. These methodologies could also be applied to the formation of diazirines enriched in nitrogen-15, or 15 N2-diazirines, also with high yields (ranging from 47% to 91%) using an ammonia solution enriched in nitrogen-15 ( 15 N HB) previously formed.
- Zakarian, A. et al. J. Am. Chem. Soc. 2018, 140, 6027-6032 have developed a synthesis of 15 pure liquid NH3 from ammonium chloride, itself enriched in nitrogen-15 ( 15 NH 4 CI) .
- This method nevertheless has the drawback of passing the ammonia to the gaseous state which means that it has to be recondensed at very low temperature (-78 ° C).
- the inventors have also developed a synthesis of 15 NH3 in solution in an alcohol, typically methanol, from 15 NH 4 Cl, under very simple reaction conditions.
- the subject of the present invention is a process for the synthesis in a single pot of a diazirine, in which the nitrogen atoms each correspond independently of each other to the 14 N isotope OR to the 1S N isotope, by reacting an amino acid or an imine, with ammonia of formula 14 NH3 or 15 NH3 and an oxidant containing a hypervalent iodine atom.
- a second subject of the invention relates to a process for the synthesis of ammonia enriched with nitrogen-15, of formula 15 NH3, comprising the following steps:
- the present invention also relates to diazirines derived from amino acids capable of being obtained or directly obtained by the process according to the invention.
- Another subject of the invention relates to diazirines of formula (G) enriched with nitrogen-15 and their use in hyperpolarization.
- the present invention also relates to the use of diazirines derived from amino acids capable of being obtained or directly obtained by the process according to the invention and of diazirines of formula (G) in photoaffinity labeling.
- the present invention relates firstly to a process for the synthesis in a single pot of diazirine enriched or not with nitrogen-15, from an amino acid or an imine, comprising the reaction of the amino acid or of the imine with ammonia, enriched or not with nitrogen-15, and an oxidant containing a hypervalent iodine atom.
- synthesis in a single pot is meant, within the meaning of the present invention, that the synthesis of the diazirines of the invention from amino acids or imines is carried out without isolation of the reaction intermediates, such as for example the corresponding diaziridines.
- the synthesis of the diazirines of the invention is advantageously carried out in a single reaction solvent.
- the term "diazirine" within the meaning of the present invention designates any three-membered heterocycle having a nitrogen-nitrogen double bond and an sp 3 carbon, substituted or not on this sp 3 carbon, enriched or not in nitrogen-15.
- the term “enriched in nitrogen-15” means that the compound concerned comprises a proportion of isotope 1S N clearly greater than the natural isotopic abundance (0.36%).
- the nitrogen-enriched compounds typically have an incorporation rate of between 60.0 and 99.9%. This incorporation rate depends on the percentage of nitrogen-15 enrichment of the nitrogen-15 source reagents. In the sense of the present invention, these are mainly commercial amino acids enriched in nitrogen-15 and commercial ammonium chloride enriched in nitrogen-15. These reagents are typically 99% enriched in nitrogen-15.
- the terms “enriched with nitrogen-15”, “containing a nitrogen atom-15", "including a nitrogen atom is a 15 N atom "have the same meaning. Likewise, “nitrogen-15” and “ 15 N” are equivalent. If it is not specified that the compound is enriched in nitrogen-15, then it contains only nitrogen 14.
- the diazirine obtained is enriched in nitrogen-15
- Other nitrogen possibly present in diazirine outside the three-membered heterocycle can also be nitrogen-15.
- amino acid is meant in the sense of the present invention any natural or unnatural amino acid, enriched or not with nitrogen-15, whatever their stereochemistry.
- amino acid designates any chemical compound which has both at least one carboxylic acid function and at least one amine function.
- the amino acid side chain can be protected or unprotected.
- At least one carboxylic acid function and at least one amine function within the amino acid are unprotected.
- it is advantageously an acid-a-amino, that is to say an amino acid in which the carboxylic acid function and the amine function are carried by the same carbon atom .
- the natural amino acids correspond to the following compounds: /.-alanine, /.-asparagine, acid-Z.-aspartic, /.-glycine, /.-glutamine, L-leucine, L-isoleucine, L- phenylalanine, /. -tryptophan, /.-valine, /.-histidine, /.-tyrosine, /.-glutamic acid, L- arginine, /.-lysine, /.-sérine, /.-thréonine, /.-proline, /. -methionine, /.- cysteine.
- the amino acid is enriched in nitrogen-15.
- the amino acid is enriched in nitrogen-15
- at least the nitrogen of the amine function linked to the carbon carrying the carboxylic acid function corresponds to the 15 N isotope.
- Other nitrogen likely to be present on the side chain amino acid can also correspond to the 15 N isotope.
- hypovalent iodine we mean an iodine atom within a molecule having more than eight electrons in its valence layer and therefore not respecting the byte rule.
- the iodine is thus either in an oxidation state (+111), it is then of the 3- iodane type, or in an oxidation state (+ V), it is then of the 5- iodane type.
- the oxidant used comprises an iodine atom advantageously of the 3- iodane type.
- RECTIFIED SHEET (RULE 91) ISA / EP Said oxidant can be prepared and isolated upstream of the process or prepared in situ during the process of the invention from an iodine derivative in the presence of an oxidant or from an iodoso type derivative.
- the oxidant containing a hypervalent iodine atom used during the process of the invention is obtained upstream of the process.
- hypervalent iodine oxidant is meant, within the meaning of the present invention, a chemical compound having an oxidizing power and containing a hypervalent iodine atom.
- the oxidant with hypervalent iodine has the role of oxidizing the reaction intermediates, such as diaziridines, to lead to the corresponding diazirines. It can also act as a catalyst for intermediate reactions taking place during the synthesis of the diazirines of the invention from amino acids or imines.
- the oxidant containing a hypervalent iodine atom can be chosen from compounds of the 3- iodane type.
- the hypervalent iodine oxidant can be chosen from the following compounds:
- Ra and Rb each independently of one another represent a C -C alkyl, in particular a methyl or a tert-butyl, or a C -C haloalkyl, in particular a trifluoromethyl
- Rc represents one or more substituents chosen from C 1 -C 6 alkyls, in particular a methyl group or an ethyl group
- the halogens in particular Cl, Br or I
- Rd represents a hydrogen, a C 1 -C 6 alkyl, such as methyl, or an acetate group.
- the oxidant with hypervalent iodine can be chosen from the following compounds:
- the oxidant used is PIDA (Phenyllodide DiAcetate; Phl (OAc) 2 ] of the following formula:
- the ammonia source can be pure gaseous or liquid ammonia, ammonia in solution in a solvent such as methanol or water, or an ammonium of general formula NH 4 + X, where X advantageously represents a against ion chosen from the group consisting of:
- the source of ammonia is ammonia in solution in a solvent, preferably ammonia in solution in methanol.
- the ammonia used may or may not be enriched in nitrogen-15. According to a preferred embodiment, the ammonia used is enriched in nitrogen-15.
- the diazirine obtained using the process of the invention does not contain nitrogen-15.
- the diazirine obtained using the process of the invention is enriched in nitrogen-15 and contains one or two nitrogen-15.
- the present invention relates to a process for the synthesis in a single pot of diazirine enriched or not with nitrogen-15, from an acid-a-amino or an imine, in particular an acid-a-amino , comprising the reaction of the amino-acid or the imine with ammonia, enriched or not with nitrogen-15, and an oxidant containing a hypervalent iodine atom of type 3- iodane.
- the method of the invention makes it possible to synthesize a diazirine of formula (I) below:
- RECTIFIED SHEET (RULE 91) ISA / EP or a physiologically acceptable salt or solvate thereof, a stereoisomer or a mixture of stereoisomers in any proportion, wherein the nitrogen atoms each independently correspond to the 14 N isotope or to the 'isotope 1S N, and in which R 1 represents H, V, W or VW where:
- W represents a cycloalkyl, an aryl, a heterocycle or a heteroaryl; W is optionally substituted by 1 to 4 groups selected from halogens, CN, NO2, OH, NR'R "and an aliphatic chain, where up to 4 methylene units of the aliphatic chain are optionally replaced by O, C (O) , S, S (O), S (0) 2 , NR 'or SiR'R ",
- R 2 represents H or an aliphatic chain, where up to 4 methylene units of the aliphatic chain are optionally replaced by O, C (O), S, S (O), S (0) 2 , NR 'or SiR'R ",
- said method comprising the following steps:
- A represents NH2
- B represents COOH
- R 1 and R 2 are as defined above
- R 3 represents V, W or VW as defined above
- Y and Z independently of one another represent OH, halogen, NH, CN, (Ci-Cio) alkyl, ((Ci-Cio) alkyl) -aryl or ((Ci-Cio) alkyl) - heteroaryl, where up to 4 methylene units of said alkyl are optionally replaced by O, C (O), S (0) 2 or NH, and in the presence of ammonia 14 NH or 15 NH, in a reaction solvent at a temperature advantageously between 0 ° C and room temperature, typically for a time between 1 h and 4 h.
- Physiologically acceptable salts of the compounds of the present invention include conventional non-toxic salts of the compounds of the invention, such as those formed from organic or inorganic acids or organic or inorganic bases.
- Physiologically acceptable salts of the compounds of the present invention include conventional non-toxic salts of the compounds of the invention, such as those formed from organic or inorganic acids or organic or inorganic bases.
- the counter-ions chloride, bromide, fluoride, nitrate or bicarbonate forming ammonium salts and the counter-ions derived from alkali metals such as Na + , Li + , K + forming carboxylate salts.
- alkali metals such as Na + , Li + , K + forming carboxylate salts.
- Acceptable solvates for the compounds according to the present invention include conventional solvates such as those formed during the last step of the process for preparing the compounds according to the invention, with the reaction solvent (s).
- aliphatic chain is meant, within the meaning of the present invention, a linear or branched hydrocarbon chain, completely saturated or containing one or more unsaturations, but not aromatic.
- An aliphatic chain according to the present invention advantageously comprises from 1 to 18 carbon atoms, preferably from 1 to 12 carbon atoms, more preferably from 1 to 10 carbon atoms.
- the term “aliphatic chain” according to the present invention includes alkyl, alkenyl or alkynyl groups, linear or branched, substituted or not.
- alkyl group is meant, within the meaning of the present invention, a saturated, linear or branched hydrocarbon chain.
- alkenyl group is meant, within the meaning of the present invention, a hydrocarbon chain, linear or branched, comprising one or more double bonds.
- alkynyl group is meant, within the meaning of the present invention, a hydrocarbon chain, linear or branched, comprising at least one triple bond.
- aryl is meant, within the meaning of the present invention, an aromatic hydrocarbon group, preferably comprising from 6 to 10 carbon atoms and comprising one or more contiguous rings. It will advantageously be a phenyl or naphthyl group.
- cycloalkyl is meant, within the meaning of the present invention, a non-aromatic hydrocarbon ring, completely saturated or containing one or more unsaturations, advantageously comprising 3 to 10 members.
- the term includes fused, spiro, or bridged polycycles.
- Examples of cycloalkyl are cyclopropenyl, cyclohexyl or cyclobutyl.
- heterocycle is meant, within the meaning of the present invention, a non-aromatic ring, completely saturated or containing one or more unsaturations, advantageously comprising 3 to 10 members in which one or more carbon atoms, advantageously 1 to 4 and again more advantageously 1 or 2, are each replaced by a heteroatom chosen from sulfur, nitrogen and oxygen atoms.
- the term includes fused, spiro, or bridged polycycles.
- it will be a unicycle or a bicycle in which 1 or 2 carbon atoms are each replaced by a heteroatom chosen from sulfur, nitrogen and oxygen atoms, preferably chosen from atoms. nitrogen and oxygen, such as nitrogen.
- heterocycles are piperidinyl, piperizinyl, pyrrolidinyl, pyrazolidinyl, imidazolidinyl, azepanyl, thiazolidinyl, isothiazolidinyl, oxazocanyl, thiazepanyl, benzimidazolonyl.
- heteroaryl is meant, within the meaning of the present invention, an aromatic group comprising one or more, in particular 1 or 2 attached hydrocarbon rings, in which one or more carbon atoms, advantageously 1 to 4 and even more advantageously 1 or 2, are each replaced by a heteroatom chosen from sulfur, nitrogen and oxygen atoms and in which each cycle advantageously comprises 5 to 7 links, preferably 5 or 6 links.
- aromatic group comprising 1 or 2 attached hydrocarbon rings, each ring being 5 or 6 members, in which 1 or 2 carbon atoms are each replaced by a heteroatom chosen from sulfur atoms, d nitrogen and oxygen, preferably chosen from nitrogen and oxygen atoms, such as nitrogen.
- heteroaryl groups are furyl, thienyl, pyrrolyl, oxazolyl, isoxazolyl, thiazolyl, isothiazolyl, imidazolyl, pyrazolyl, oxadiazolyl, thiadiazolyl, triazolyl, tetrazolyl, pyridyl, pyridazinyl, pyrididinyl quinol, pyrimidinyl quinol . It will especially be a pyridyl, indolyl or imidazolyl group.
- halogen atom is meant, within the meaning of the present invention, fluorine, chlorine, bromine and iodine atoms.
- unsaturated is meant, within the meaning of the present invention, that the hydrocarbon chain can comprise one or more unsaturation (s), advantageously one.
- stereoisomer is meant, within the meaning of the present invention, a geometric isomer or an optical isomer.
- the geometric isomers result from the different position of the substituents on a double bond which can then have a Z or E configuration.
- optical isomers result in particular from the different position in the space of the substituents on a carbon atom comprising 4 different substituents. This carbon atom then constitutes a chiral or asymmetric center.
- Optical isomers include diastereoisomers and enantiomers.
- the optical isomers which are images of one another in a mirror but not superimposable are designated by "enantiomers”.
- the optical isomers which are neither superimposable nor images of one another in a mirror are designated by “diastereoisomers”.
- racemic mixture A mixture containing equal amounts of two individual enantiomeric forms of opposite chirality is referred to as a "racemic mixture".
- chiral group is meant, within the meaning of the present invention, a group which is not superimposable on its image in a mirror.
- Such a chiral group may in particular comprise an asymmetric carbon atom, that is to say a carbon atom substituted by four different substituents (including hydrogen).
- the stereoisomerism of the compounds can be induced by the side chains R 1 and / or R 2 .
- an aryl is said to be substituted by an aliphatic chain
- the aliphatic chain can be located between said aryl and the rest of the molecule.
- R 3 represents an aryl substituted by an aliphatic chain
- this may mean that the aliphatic chain is directly linked to the nitrogen atom carrying the radical R 3 and said aliphatic chain carries an aryl.
- the groups are benzyl and tosyle, where the methylene group of the aliphatic chain is replaced by a sulfone group.
- An aryl substituted by an aliphatic chain also designates the case where the aryl is directly linked to the rest of the molecule and carries an aliphatic chain.
- ambient temperature used subsequently denotes a temperature ranging from 18 ° C to 30 ° C, preferably ranging from 20 ° C to 25 ° C, more preferably being 22 ° vs.
- R 1 represents H, V, W or VW where:
- W represents a cycloalkyl, an aryl, a heterocycle or a heteroaryl; W is optionally substituted by 1 to 4 groups selected from halogens, CN, NO2, OH, NR'R "and an aliphatic chain, where up to 4 methylene units of the aliphatic chain are optionally replaced by O, C (O) , S, S (O), S (0) 2 , NR 'or SiR'R ", R' and R" being as defined above.
- R 2 represents H or an alkyl group, preferably methyl.
- R 2 is a hydrogen atom.
- R 3 represents an aliphatic chain, a cycloalkyl or an aryl; in which up to 4 methylene units of the aliphatic chain are optionally replaced by O, C (O), S, S (O), S (O) 2 , NR 'or SiR'R ", and in which said aryl is optionally substituted with 1 to 4 groups selected from halogens, CN, NO2, OH, NR'R "and an aliphatic chain as defined above.
- R 3 represents a benzyl, tosyl, cyclohexyl group, a hydroxyl or an alkyl such as a tert-butyl group.
- R 3 is a tert-butyl or tosyl group.
- X is an aryl, for example a phenyl, and / or Y and Z are preferably identical and even more preferably, Y and Z represent a halogen, for example a chlorine or a fluorine, an OH group, NH2, CN, 0- (Ci-C 6 ) alkyl, 0- (Ci-C 6 ) -perfluoroalkyle, O-aryl, 0-S (0) 2 - (Ci-Ce) alkyl, 0-S (0) 2 -heteroaryl, NH-S0 2 - (C I - Ce) alkyl, NH-S (0) 2 -heteroaryl, N (S0 2 - (Ci-Ce) alkyl) 2 , N (S (0) 2 -heteroaryl ) 2 or an ester group 0 (CO) (Ci-
- the solvent used is a solvent advantageously chosen from alcohols, acetonitrile, THF, toluene, dichloromethane, ethyl acetate, DMSO, acetone, pyridine or DMF.
- the reaction advantageously takes place in an alcohol such as methanol, ethanol, propan-l-ol, n-butanol, ferf-butanol, pentan-l-ol, hexan-l-ol, preferably in methanol.
- reaction solvent corresponds to the solvent of the ammonia source.
- the ammonia is used in excess relative to the compound of formula (II), preferably in an amount of 15 to 20 equivalents, preferably from 17 to 18 equivalents. In particular, ammonia is used in an amount of 17.5 equivalents relative to the compound of formula (II).
- the compound of formula (II) is added to a solution of ammonia in a solvent, preferably to a solution of ammonia in methanol.
- the oxidant comprising a hypervalent iodine atom is advantageously used in excess relative to the compound of formula (II), in a proportion of 2 to 5 equivalents, preferably 3 equivalents.
- the oxidant comprising the hypervalent iodine atom is added to the reaction medium consisting of ammonia, the compound of formula (II) and the solvent, preferably when the reaction medium is at a temperature of 0 ° C.
- a single addition of oxidant is advantageously carried out during the process for obtaining diazirines from the compounds of formula (II).
- the temperature of the reaction medium is firstly maintained at 0 ° C. for a period of between 15 minutes and 45 minutes, preferably 30 minutes, after the addition of the oxidant comprising a hypervalent iodine atom, then it is brought up to ambient temperature, and typically maintained at this temperature typically for a time between 1 hour and 3 hours, preferably for 1 hour 30 minutes.
- the diazirine obtained in step (a) is advantageously purified, preferably by chromatography or distillation.
- chromatography is meant, within the meaning of the present invention, a technique for purifying the compounds based on the difference in affinity of the compounds with the mobile phase and the stationary phase.
- chromatography a technique for purifying the compounds based on the difference in affinity of the compounds with the mobile phase and the stationary phase.
- the compounds will be separated by adsorption chromatography.
- the mobile phase can be a liquid, a gas or a supercritical fluid.
- the mobile phase will be a liquid, preferably a mixture of solvents of different polarity, for example two solvents, chosen from pentane, ethyl acetate, methanol, dichloromethane, ethanol or diethyl ether.
- the stationary phase can be paper, silica, modified or not, polymers, alumina, etc.
- the stationary phase will be silica.
- the chromatography will be chromatography on silica gel.
- the compound of formula (II) is an amino acid of the following formula (IIa):
- W represents a cycloalkyl, an aryl, a heterocycle or a heteroaryl; W is optionally substituted by 1 to 4 groups selected from halogens, CN, NO2, OH, NR'R "and an (Ci-Cio) aliphatic chain, where up to 4 methylene units of the (Ci-Cio) aliphatic chain are optionally replaced by O, C (O), S, S (O), S (0) 2 , NR 'or SiR'R ",
- the compound (IIa) corresponds to the following amino acids: /.-aspartic acid, /.-asparagine, /.-glutamine, /.-glycine, /.-alanine, L-valine, L- isoleucine, /.-leucine, L-phenylalanine, /.-tryptophan, 4-methyl - / .- phenylalanine, 4-iodo - / .- phenylalanine /.-Histidine, /.-tyrosine, acid /.-glutamic acid.
- the compound (11a) corresponds to natural amino acids.
- the compound (IIa) corresponds to the amino acids making it possible to obtain non-volatile diazirines, such as the following natural amino acids: L-Histidine, /.-tyrosine or acid /.-glutamic acid.
- the method comprises a preliminary step of protecting the compound (11a).
- protection step means the establishment of a protective group on a chemical function present in the group R 1 of the compound (IIa).
- the term “protection step” can also denote a reversible chemical reaction making it possible to inhibit the reactivity of a chemical function under the reaction conditions of the process of the invention, such as for example an oxidation, reduction or amidation.
- protecting group is meant, for the purposes of the present invention, a group which makes it possible to protect a reactive chemical function against undesirable reactions such as the groups described by TW Greene, “Protective Groups In Organic synthesis”, (John Wiley & Sons, New York (1981)) and Harrison et al. "Compendium of Synthetic Organic Methods", Vols. 1 to 8 (J. Wiley & sons, 1971 to 1996).
- the term “chemical function” designates, according to the present invention, any reactive chemical entity capable of reacting during the process of the invention. It can be an atom, a set of atoms, for example an unsaturated or aromatic saturated cycle or heterocycle.
- the preliminary protection step is carried out on the compound (lia) in which R 1 comprises a chemical function incompatible with the reagents used in the process of the invention, such as OH, NH2, C (0) NH 2 , C (0) 0H, SH, a guanidine function, an indole ring or a thioether function.
- the preliminary protection step is carried out on the compound (lia) in which R 1 corresponds to the side chain of the following amino acids: lysine, arginine, serine, threonine, methionine, tryptophan and cysteine.
- the protective groups according to the present invention include in particular a tert-butoxycarbonyl group, commonly abbreviated Boc, a benzyl group (Bn), a trityl group (Tr), a carboxybenzyl group (CBz), acyl groups such as the acetate group ( Ac) or silylated protecting groups, such as ferf-butylediphenylsilyl (TBDPS).
- the step of protecting a compound (IIa) whose group R 1 comprises a thioether function corresponds to an oxidation of this atom to sulfoxide.
- a thiol function is protected in the form of thioethers, for example with a trityl.
- an NH 2 function present in the group R 1 of the compound (IIa) is protected in the form of an amide or a carbamate, for example using an acetate group, a Boc group or a CBz group.
- an OH function present in the group R 1 of the compound (IIa) is protected in the form of an ether, in particular using a benzyl, and more particularly of silylated ethers, for example using TBDPS .
- an indole function in the group R 1 of the compound (IIa) is protected by the introduction of a group Boc.
- the compound (11a) corresponds to the following protected amino acids: / V e -Acetyl-Z.-lysine, / V e -benzyloxycarbamate - / .- lysine, /.- methionine sulfoxide,
- the compound (11a) undergoes a functional modification aimed at reducing the volatility of the corresponding diazirines.
- Said functional modification typically corresponds to the introduction of groups which will increase the molecular weight and / or the polarity of the compound to make it less volatile.
- the groups making it possible to reduce the volatility of the compounds include, for example, halogens, in particular iodine, or also isopropyl or tert-butyl groups.
- the introduction of an iodine atom is particularly interesting because it makes it possible to carry out subsequent functionalizations by organometallic coupling in an efficient manner.
- the compound (11a) corresponds to 4-iodophenyl-alanine.
- the diazirine according to the invention advantageously of formula (I), enriched in nitrogen-15 is obtained using the process according to the invention from the amino acid ( 11a) enriched in nitrogen-15 and ammonia enriched in nitrogen-15.
- the diazirine according to the invention, advantageously of formula (I), enriched in nitrogen-15 obtained from the amino acid (IIa) enriched in nitrogen-15 and ammonia enriched in nitrogen-15 has a degree of incorporation nitrogen-15 greater than 99%.
- the diazirine according to the invention advantageously of formula (I), enriched in nitrogen-15 is obtained using the method according to the invention from the amino acid (lia) not enriched in nitrogen-15 and ammonia enriched in nitrogen-15.
- the diazirine according to the invention, advantageously of formula (I), enriched in nitrogen-15 obtained from the amino acid (IIa) not enriched in nitrogen-15 and ammonia enriched in nitrogen-15 has a rate of incorporation of nitrogen-15 between 60% and 90%.
- the compound of formula (II) is an imine of formula (Mb) below:
- R 1 represents H, V, W or VW where:
- W represents a cycloalkyl, an aryl, a heterocycle or a heteroaryl; W is optionally substituted by 1 to 4 groups selected from halogens, CN, NO2, OH, NR'R "and an aliphatic chain, where up to 4 methylene units of the aliphatic chain are optionally replaced by O, C (O) , S, S (O), S (0) 2 , NR 'or SiR'R ", R' and R” each independently of one another H or an aliphatic chain, where up to 4 methylene units of the aliphatic chain are optionally replaced by O, C (O), S, S (O), S (0) 2 , NR 'or SiR'R ",
- R 2 represents H or an aliphatic chain, where up to 4 methylene units of the chain
- aliphatics are optionally replaced by O, C (O), S, S (O), S (0) 2 , NR 'or SiR'R ", and R 3 represents V, W or VW as defined above.
- R 1 represents an aliphatic (C 1 -C 4 ) chain as defined above.
- R 1 comprises an acid function COOH carboxylic.
- R 1 represents an alkyl-COOH group, for example CH2CH2COOH.
- R 1 when R 1 is an aryl, it is advantageously unsubstituted or substituted by 1 to 4 groups selected from CN, NO2, OH, NR'R "and an aliphatic chain , where up to 4 methylene units of the aliphatic chain are optionally replaced by C (0) 0, S, S (O), S (0) 2 , NR 'or SiR'R ".
- R 1 is an aryl, preferably a phenyl substituted by a group CN, NO2, C (O) - (Ci-C 4 alkyl) or C (0) 0- (Ci-C 4 alkyl). More preferably, R 1 is a phenyl substituted by a nitrile group (CN) or an NO2 group.
- R 2 represents H or an alkyl, preferably a methyl.
- R 3 represents an aliphatic chain, a cycloalkyl or an aryl; in which up to 4 methylene units of the aliphatic chain are optionally replaced by O, C (O), S, S (O), S (O) 2 , NR 'or SiR'R ", and in which said aryl is optionally substituted with 1 to 4 groups selected from halogens, CN, NO2, OH, NR'R "and an aliphatic chain as defined above.
- R 3 represents a benzyl, tosyl, cyclohexyl group, a hydroxyl or an alkyl such as a tert-butyl group.
- R 3 is a tert-butyl or tosyl group.
- the imine of formula (Mb) is obtained beforehand from a carbonyl compound of formula (IV) below:
- R 1 and R 2 are as defined above.
- the reaction for obtaining the imine of formula (Mb) advantageously comprises the reaction of the carbonyl compound of formula (IV) with an amine of formula (V) below:
- R 3 is as defined above.
- R 3 represents a benzyl, tosyl, cyclohexyl group, a hydroxyl or an alkyl such as a tert-butyl group.
- R 3 is a tert-butyl or tosyl group.
- the diazirine according to the invention advantageously of formula (I), enriched in nitrogen-15 is obtained using the method according to the invention from imine (Mb) not enriched in nitrogen -15 and ammonia enriched in nitrogen-15.
- the present invention also relates to a process for synthesizing ammonia enriched nitrogen-15, Formula 15 NH 3, comprising the steps of: (a ') reaction of the enriched ammonium chloride with nitrogen-15 formula 15 NH 4 CI with an alcoholate of formula RO-L in the corresponding anhydrous alcohol ROH, where
- R x corresponds to an alkyl group, preferably a C1-C6 alkyl group, more preferably R x is methyl, and
- L is a counterion chosen from Na + , K + and Li + , preferably Na + ,
- the ammonium chloride used is typically 99% enriched in nitrogen-15.
- the ammonium chloride enriched with nitrogen-15 and the alcoholate of formula RO-L are used in equivalent quantity.
- the process temperature is preferably between 0 ° C and room temperature and the reaction time is between 2:30 and 3 hours.
- the alcoholate of formula RO-L is added to a solution of ammonium chloride enriched in nitrogen-15 in the corresponding anhydrous alcohol ROH at a temperature of 0 ° C.
- the alcoholate of formula RO-L is added to a solution of ammonium chloride enriched in nitrogen-15 in the corresponding anhydrous alcohol ROH in several portions, for example five portions, over a certain period of time typically included between 15 minutes and 1 hour, preferably over a period of 30 minutes.
- reaction medium composed of the alcoholate of formula RO-L and of a solution of ammonium chloride enriched with nitrogen-15 in the corresponding anhydrous alcohol ROH is typically stirred at temperature advantageously ambient for a period of time between 1.5 hours and 3 hours, preferably for 2 hours.
- the anhydrous alcohol used is chosen from methanol, ethanol, trifluoroethanol, propan-1-ol, propan-2-ol, hexafluoropropan-2-ol, n- butanol, tert-butanol, pentan-l-ol, pentan-2-ol, pentan-3-ol, hexan-l-ol, hexan- 2-ol and hexan-3- ol, preferably, the anhydrous alcohol according to the invention is methanol.
- the alcoholate of formula RO-L used is advantageously chosen from lithium, sodium or potassium alcoholates of the anhydrous alcohols mentioned above, preferably the alcoholate according to the invention corresponds to sodium methanolate.
- diazirines according to the invention advantageously of formula (I), not enriched in nitrogen-15, derived from amino acids, likely to be obtained or directly obtained via the process for obtaining diazirines according to the invention.
- the diazirines of formula (I) not enriched in nitrogen-15 according to the invention come from natural or non-natural amino acids, protected or not.
- diazirines according to the invention capable of being obtained or directly obtained via the process for obtaining the diazirines according to the invention are of formula (I) below:
- W represents a cycloalkyl, an aryl, a heterocycle or a heteroaryl; W is optionally substituted by 1 to 4 groups selected from halogens, CN, NO2, OH, NR'R "and an aliphatic chain, where up to 4 methylene units of the aliphatic chain are optionally replaced by O, C (O) , S, S (O), S (0) 2 , NR 'or SiR'R ", R' and R" each independently of one another H or an aliphatic chain, where up to 4 methylene units of the aliphatic chain are optionally replaced by O, C (O), S, S (O), S (0) 2 , NR 'or SiR'R ", and
- R 2 represents H or an aliphatic chain, where up to 4 methylene units of the aliphatic chain are optionally replaced by O, C (O), S, S (O), S (0) 2 , NR 'or SiR'R ".
- R 2 represents a hydrogen or a (Ci-Ce) alkyl group, such as a methyl, preferably a hydrogen.
- R 1 is preferably a phenyl substituted by a group CN, NO2, C (O) - (Ci-C 4 alkyl) or C (0) 0- (Ci-C 4 alkyl). More preferably, R 1 is a phenyl substituted by a nitrile (CN) or NO2 group.
- diazirines of formula (I) not enriched in nitrogen-15 capable of being obtained or directly obtained by the process of the invention advantageously correspond to the following compounds:
- the diazirines of formula (I) not enriched in nitrogen according to the invention are capable of being obtained or directly obtained by the process of the invention in which the compound (II) is of formula (Mb).
- the diazirines of formula (I) according to the invention advantageously correspond to the following compounds:
- the diazirines of formulas (I), not enriched in nitrogen-15, capable of being obtained or directly obtained via the process for obtaining the diazirines according to the invention are derived from amino acids, preferably natural amino acids.
- the diazirines of formula (I) according to the invention derived from amino acids are capable of being obtained or directly obtained by the process of the invention in which the compound (II) is of formula (IIa).
- the diazirines correspond to the following formula (1A):
- R 1 is as defined above.
- Another object of the present invention relates to diazirines enriched with nitrogen-15 of formula (G) below, capable of being obtained or directly obtained by the process for obtaining diazirines according to the present invention:
- R 1 represents H, V, W or VW where:
- R 2 represents H or an aliphatic chain, where up to 4 methylene units of the aliphatic chain are optionally replaced by O, C (O), S, S (O), S (0) 2 , NR 'or SiR'R ".
- R 1 corresponds to the side chain of amino acids, natural or unnatural, protected or not.
- R 2 represents a hydrogen or a (Ci-C 6 ) alkyl group, such as a methyl, preferably a hydrogen.
- R 1 is preferably a phenyl substituted by a group CN, NO2, C (O) - (Ci-C 4 alkyl) or C (0) 0- (Ci-C 4 alkyl). More preferably, R 1 is a phenyl substituted by a nitrile (CN) or NO2 group.
- diazirines of formula (I) capable of being obtained or directly obtained by the process of the invention advantageously correspond to the following compounds:
- the diazirines of formula (G) enriched in nitrogen-15 according to the invention are capable of being obtained or directly obtained by the process of the invention in which the compound (II) is of formula ( Mb), preferably enriched in nitrogen-15.
- the diazirines of formula (G) according to the invention advantageously correspond to the following compounds:
- the diazirines of formula (G) are capable of being obtained or directly obtained according to the method of the invention from amino acids.
- These amino acids can be natural or unnatural, preferably natural. Said amino acids may have been previously protected as described in the present application.
- the amino acids may or may not be enriched in nitrogen-15, preferably, they are enriched in nitrogen-15.
- the diazirines of formula (G) are derived from the following amino acids: L-aspartic acid, L-asparagine, Z.
- the diazirines of formula (G) according to the invention derived from amino acids are capable of being obtained or directly obtained by the process of the invention in which the compound (II) is preferably of formula (IIa) enriched in nitrogen- 15.
- the diazirines have the following formula (GA):
- R 1 is as defined above.
- diazirines of formula (G) derived from amino acids correspond to the following formulas:
- the present application also relates to the use of diazirines 1a to 1s and optionally diazirines enriched in nitrogen-15 as defined above for their application in photoaffinity labeling.
- An object of the present application also relates to the use of diazirines enriched in nitrogen-15 of formula (G) for their application in hyperpolarization, in particular in the field of medical imaging.
- the level of 15 N 2 -diazirine is greater than 99%.
- the medium is then filtered over Na 3 S0 4 and the residue is washed with ethyl acetate, then the solvent is evaporated under reduced pressure and the reaction crude is purified by chromatography on silica gel to provide the 3n imine or 3o.
- R x 'Bu, Ts or S (Q) -pTol
- N2-diazirine / ( 15 N 14 N) -diazirine ratio:> 99% from N-tBu imine 3a; 71% from N-Ts imine 3h (According to NMR measurements “N ⁇ H ⁇ ).
- NMR “N ⁇ H ⁇ (60.8 MHz, CDCI 3 ): ⁇ 5 464.2 (broad s, 2 N, 15 N 2 -diazirine).
- Diazirine la derived from tyrosine
- UV irradiation 360 nm
- the carbene generated in situ is then directly trapped by the reaction solvent, methanol, to lead to ether 6a (see figure below) with total conversion.
- Molecular probes are generally complex molecules, having particular groups such as fluorescent markers or groups having a particular affinity with their biological target.
- the inventors have shown that the diazirines according to the invention can be easily functionalized. Diazirine 1a therefore reacts with tert-butyl bromoacetate to lead to ester 7, then quickly hydrolyzed to obtain a carboxylic acid 8.
- diazirine la O 0.5 mmol
- acetonitrile 1.5 mL
- potassium carbonate 0.75 mmol
- potassium iodide 15 mol%
- tert-butyl bromoacetate 0.625 mmol
- the reaction medium is stirred for 24 h at room temperature, diluted with distilled water and then extracted with ethyl acetate.
- the organic phase is dried over magnesium sulfate and then filtered. After evaporation under vacuum, diazirine 7 is obtained (131 mg; 99%) in the form of an orange oil.
- diazirine 7 (0.4 mmol) in dichloromethane (1 ml) is added dropwise the trifluoroacetic acid (1 ml). After magnetic stirring of the reaction medium for 1 h at room temperature, it is evaporated and the residue is dissolved in diethyl ether. The organic phase is dried over magnesium sulfate and then filtered. After evaporation, diazirine 8 (82 mg; 99%) is obtained in the form of a beige solid.
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Abstract
Description
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Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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FR1860507A FR3088322A1 (fr) | 2018-11-14 | 2018-11-14 | Nouvelle voie de synthese de diazirines, enrichies ou non en azote-15 |
PCT/EP2019/081393 WO2020099596A1 (fr) | 2018-11-14 | 2019-11-14 | Nouvelle voie de synthese de diazirines, enrichies ou non en azote-15 |
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EP3880662A1 true EP3880662A1 (fr) | 2021-09-22 |
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EP19804716.9A Withdrawn EP3880662A1 (fr) | 2018-11-14 | 2019-11-14 | Nouvelle voie de synthese de diazirines, enrichies ou non en azote-15 |
Country Status (5)
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US (1) | US20220098155A1 (fr) |
EP (1) | EP3880662A1 (fr) |
CA (1) | CA3119871A1 (fr) |
FR (1) | FR3088322A1 (fr) |
WO (1) | WO2020099596A1 (fr) |
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FR2939657B1 (fr) | 2008-12-15 | 2011-02-11 | Oreal | Composition cosmetique comprenant une polyamine portant des groupes diazirines et utilisation pour le photo-greffage d'un polymere non saccharidique different des polymeres polyamines |
SG10201704023UA (en) | 2012-11-23 | 2017-06-29 | Univ Nanyang Tech | New Photoactive Bioadhesive Compositions |
TWI648271B (zh) | 2014-09-23 | 2019-01-21 | 日商住友電木股份有限公司 | 二氮環丙烯化合物及由其衍生之組成物 |
FR3029788B1 (fr) | 2014-12-16 | 2018-03-02 | L'oreal | Procede cosmetique pour attenuer les odeurs |
DE102015217978A1 (de) | 2015-09-18 | 2017-03-23 | Henkel Ag & Co. Kgaa | Diazirine als Photocages, die Doppelbindungen enthaltende Moleküle freisetzen |
-
2018
- 2018-11-14 FR FR1860507A patent/FR3088322A1/fr not_active Withdrawn
-
2019
- 2019-11-14 WO PCT/EP2019/081393 patent/WO2020099596A1/fr unknown
- 2019-11-14 US US17/292,832 patent/US20220098155A1/en not_active Abandoned
- 2019-11-14 EP EP19804716.9A patent/EP3880662A1/fr not_active Withdrawn
- 2019-11-14 CA CA3119871A patent/CA3119871A1/fr active Pending
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FR3088322A1 (fr) | 2020-05-15 |
CA3119871A1 (fr) | 2020-05-22 |
US20220098155A1 (en) | 2022-03-31 |
WO2020099596A1 (fr) | 2020-05-22 |
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