BE427221A

BE427221A -

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Publication number: BE427221A
Authority: BE; Belgium
Prior art keywords: compounds; groups; group; double bonds; halogen atoms
Prior art date

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English (en)

French (fr)

Publication of BE427221A publication Critical patent/BE427221A/fr

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XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 27
150000001875 compounds Chemical class 0.000 claims description 21
125000005843 halogen group Chemical group 0.000 claims description 20
239000002253 acid Substances 0.000 claims description 11
125000000468 ketone group Chemical group 0.000 claims description 10
230000009467 reduction Effects 0.000 claims description 10
239000003638 chemical reducing agent Substances 0.000 claims description 9
125000000664 diazo group Chemical group [N-]=[N+]=[*] 0.000 claims description 8
125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 8
125000004432 carbon atom Chemical group C* 0.000 claims description 7
125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 7
238000000034 method Methods 0.000 claims description 7
229920006395 saturated elastomer Polymers 0.000 claims description 7
150000007513 acids Chemical class 0.000 claims description 6
239000003795 chemical substances by application Substances 0.000 claims description 6
230000001172 regenerating effect Effects 0.000 claims description 4
239000002904 solvent Substances 0.000 claims description 3
125000000217 alkyl group Chemical group 0.000 claims description 2
125000003710 aryl alkyl group Chemical group 0.000 claims description 2
125000003118 aryl group Chemical group 0.000 claims description 2
239000003085 diluting agent Substances 0.000 claims description 2
150000002825 nitriles Chemical group 0.000 claims description 2
241000134884 Ericales Species 0.000 claims 1
QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 35
RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 24
229960000583 acetic acid Drugs 0.000 description 15
239000000047 product Substances 0.000 description 14
239000012362 glacial acetic acid Substances 0.000 description 10
RJKFOVLPORLFTN-LEKSSAKUSA-N Progesterone Chemical compound C1CC2=CC(=O)CC[C@]2(C)[C@@H]2[C@@H]1[C@@H]1CC[C@H](C(=O)C)[C@@]1(C)CC2 RJKFOVLPORLFTN-LEKSSAKUSA-N 0.000 description 9
HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 8
150000002576 ketones Chemical class 0.000 description 8
CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 7
150000002148 esters Chemical class 0.000 description 7
229910052739 hydrogen Inorganic materials 0.000 description 7
239000001257 hydrogen Substances 0.000 description 7
QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 6
CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 6
VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 6
YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
238000010438 heat treatment Methods 0.000 description 6
FVAUCKIRQBBSSJ-UHFFFAOYSA-M sodium iodide Chemical compound [Na+].[I-] FVAUCKIRQBBSSJ-UHFFFAOYSA-M 0.000 description 6
239000000203 mixture Substances 0.000 description 5
229960003387 progesterone Drugs 0.000 description 5
239000000186 progesterone Substances 0.000 description 5
OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 4
PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 4
UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 4
230000001476 alcoholic effect Effects 0.000 description 4
150000001298 alcohols Chemical class 0.000 description 4
JYYOBHFYCIDXHH-UHFFFAOYSA-N carbonic acid;hydrate Chemical compound O.OC(O)=O JYYOBHFYCIDXHH-UHFFFAOYSA-N 0.000 description 4
150000002431 hydrogen Chemical class 0.000 description 4
239000000155 melt Substances 0.000 description 4
238000002844 melting Methods 0.000 description 4
230000008018 melting Effects 0.000 description 4
BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 4
238000001953 recrystallisation Methods 0.000 description 4
ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 3
LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 3
238000009835 boiling Methods 0.000 description 3
238000006243 chemical reaction Methods 0.000 description 3
239000007795 chemical reaction product Substances 0.000 description 3
150000002170 ethers Chemical class 0.000 description 3
229910052736 halogen Inorganic materials 0.000 description 3
XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical compound I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 description 3
229910052740 iodine Inorganic materials 0.000 description 3
239000011630 iodine Substances 0.000 description 3
238000007127 saponification reaction Methods 0.000 description 3
229910000029 sodium carbonate Inorganic materials 0.000 description 3
229910052725 zinc Inorganic materials 0.000 description 3
239000011701 zinc Substances 0.000 description 3
RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 2
BMYNFMYTOJXKLE-UHFFFAOYSA-N 3-azaniumyl-2-hydroxypropanoate Chemical compound NCC(O)C(O)=O BMYNFMYTOJXKLE-UHFFFAOYSA-N 0.000 description 2
LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 2
WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 2
RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 2
LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
XXFXTBNFFMQVKJ-UHFFFAOYSA-N [diphenyl(trityloxy)methyl]benzene Chemical compound C=1C=CC=CC=1C(C=1C=CC=CC=1)(C=1C=CC=CC=1)OC(C=1C=CC=CC=1)(C=1C=CC=CC=1)C1=CC=CC=C1 XXFXTBNFFMQVKJ-UHFFFAOYSA-N 0.000 description 2
239000003513 alkali Substances 0.000 description 2
229910052784 alkaline earth metal Inorganic materials 0.000 description 2
GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 2
229910052794 bromium Inorganic materials 0.000 description 2
150000001721 carbon Chemical group 0.000 description 2
229910052799 carbon Inorganic materials 0.000 description 2
239000003054 catalyst Substances 0.000 description 2
239000010949 copper Substances 0.000 description 2
238000001704 evaporation Methods 0.000 description 2
230000008020 evaporation Effects 0.000 description 2
239000000706 filtrate Substances 0.000 description 2
150000002367 halogens Chemical class 0.000 description 2
BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 2
229910052759 nickel Inorganic materials 0.000 description 2
229910052763 palladium Inorganic materials 0.000 description 2
XHXFXVLFKHQFAL-UHFFFAOYSA-N phosphoryl trichloride Chemical compound ClP(Cl)(Cl)=O XHXFXVLFKHQFAL-UHFFFAOYSA-N 0.000 description 2
229910052697 platinum Inorganic materials 0.000 description 2
238000002360 preparation method Methods 0.000 description 2
150000003839 salts Chemical class 0.000 description 2
150000003333 secondary alcohols Chemical class 0.000 description 2
229910000030 sodium bicarbonate Inorganic materials 0.000 description 2
235000017557 sodium bicarbonate Nutrition 0.000 description 2
235000009518 sodium iodide Nutrition 0.000 description 2
AKHNMLFCWUSKQB-UHFFFAOYSA-L sodium thiosulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=S AKHNMLFCWUSKQB-UHFFFAOYSA-L 0.000 description 2
235000019345 sodium thiosulphate Nutrition 0.000 description 2
CTCFFFBOCLKUGF-NHRYOTLXSA-N (8R,9S,10S,13S,14S,17S)-17-(2-chloroacetyl)-10,13-dimethyl-1,2,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydrocyclopenta[a]phenanthren-3-one Chemical compound ClCC([C@H]1CC[C@@H]2[C@]1(C)CC[C@H]1[C@H]2CCC2CC(CC[C@]12C)=O)=O CTCFFFBOCLKUGF-NHRYOTLXSA-N 0.000 description 1
YYGHYPOZSPWGOH-YFWFAHHUSA-N (8s,9s,10r,13s,14s,17s)-17-(2-chloroacetyl)-10,13-dimethyl-1,2,6,7,8,9,11,12,14,15,16,17-dodecahydrocyclopenta[a]phenanthren-3-one Chemical compound O=C1CC[C@]2(C)[C@H]3CC[C@](C)([C@H](CC4)C(=O)CCl)[C@@H]4[C@@H]3CCC2=C1 YYGHYPOZSPWGOH-YFWFAHHUSA-N 0.000 description 1
ORNBQBCIOKFOEO-OZIWPBGVSA-N 1-[(8s,9s,10r,13s,14s,17s)-3-hydroxy-10,13-dimethyl-2,3,4,7,8,9,11,12,14,15,16,17-dodecahydro-1h-cyclopenta[a]phenanthren-17-yl]ethanone Chemical compound C1C=C2CC(O)CC[C@]2(C)[C@@H]2[C@@H]1[C@@H]1CC[C@H](C(=O)C)[C@@]1(C)CC2 ORNBQBCIOKFOEO-OZIWPBGVSA-N 0.000 description 1
NGNBDVOYPDDBFK-UHFFFAOYSA-N 2-[2,4-di(pentan-2-yl)phenoxy]acetyl chloride Chemical compound CCCC(C)C1=CC=C(OCC(Cl)=O)C(C(C)CCC)=C1 NGNBDVOYPDDBFK-UHFFFAOYSA-N 0.000 description 1
LCUJWGFEKPBUNF-YFWFAHHUSA-N 2-diazonio-1-[(8s,9s,10r,13s,14s,17s)-10,13-dimethyl-3-oxo-1,2,6,7,8,9,11,12,14,15,16,17-dodecahydrocyclopenta[a]phenanthren-17-yl]ethenolate Chemical compound O=C1CC[C@]2(C)[C@H]3CC[C@](C)([C@H](CC4)C([O-])=C[N+]#N)[C@@H]4[C@@H]3CCC2=C1 LCUJWGFEKPBUNF-YFWFAHHUSA-N 0.000 description 1
JTNCEQNHURODLX-UHFFFAOYSA-N 2-phenylethanimidamide Chemical compound NC(=N)CC1=CC=CC=C1 JTNCEQNHURODLX-UHFFFAOYSA-N 0.000 description 1
OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 1
XMRPGKVKISIQBV-CVHNGYJVSA-N 5-α-pregnan-3,20-dione Chemical compound C1CC2CC(=O)CC[C@]2(C)[C@@H]2[C@@H]1[C@@H]1CC[C@H](C(=O)C)[C@@]1(C)CC2 XMRPGKVKISIQBV-CVHNGYJVSA-N 0.000 description 1
QZLYKIGBANMMBK-DYKIIFRCSA-N 5β-androstane Chemical compound C([C@H]1CC2)CCC[C@]1(C)[C@@H]1[C@@H]2[C@@H]2CCC[C@@]2(C)CC1 QZLYKIGBANMMBK-DYKIIFRCSA-N 0.000 description 1
229910000761 Aluminium amalgam Inorganic materials 0.000 description 1
229910000497 Amalgam Inorganic materials 0.000 description 1
229910000881 Cu alloy Inorganic materials 0.000 description 1
YXHKONLOYHBTNS-UHFFFAOYSA-N Diazomethane Chemical compound C=[N+]=[N-] YXHKONLOYHBTNS-UHFFFAOYSA-N 0.000 description 1
DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
DFPAKSUCGFBDDF-UHFFFAOYSA-N Nicotinamide Chemical group NC(=O)C1=CC=CN=C1 DFPAKSUCGFBDDF-UHFFFAOYSA-N 0.000 description 1
229910001252 Pd alloy Inorganic materials 0.000 description 1
YGYAWVDWMABLBF-UHFFFAOYSA-N Phosgene Chemical class ClC(Cl)=O YGYAWVDWMABLBF-UHFFFAOYSA-N 0.000 description 1
ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
ORNBQBCIOKFOEO-YQUGOWONSA-N Pregnenolone Natural products O=C(C)[C@@H]1[C@@]2(C)[C@H]([C@H]3[C@@H]([C@]4(C)C(=CC3)C[C@@H](O)CC4)CC2)CC1 ORNBQBCIOKFOEO-YQUGOWONSA-N 0.000 description 1
239000004133 Sodium thiosulphate Substances 0.000 description 1
229910001297 Zn alloy Inorganic materials 0.000 description 1
150000001242 acetic acid derivatives Chemical class 0.000 description 1
150000008065 acid anhydrides Chemical class 0.000 description 1
230000003213 activating effect Effects 0.000 description 1
125000002252 acyl group Chemical group 0.000 description 1
125000001931 aliphatic group Chemical group 0.000 description 1
150000001342 alkaline earth metals Chemical class 0.000 description 1
229910045601 alloy Inorganic materials 0.000 description 1
239000000956 alloy Substances 0.000 description 1
XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
230000001034 aminogenic effect Effects 0.000 description 1
QAOWNCQODCNURD-UHFFFAOYSA-M bisulphate group Chemical group S([O-])(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-M 0.000 description 1
150000004649 carbonic acid derivatives Chemical class 0.000 description 1
125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
229940117975 chromium trioxide Drugs 0.000 description 1
WGLPBDUCMAPZCE-UHFFFAOYSA-N chromium trioxide Inorganic materials O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 1
GAMDZJFZMJECOS-UHFFFAOYSA-N chromium(6+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Cr+6] GAMDZJFZMJECOS-UHFFFAOYSA-N 0.000 description 1
239000012141 concentrate Substances 0.000 description 1
239000007859 condensation product Substances 0.000 description 1
229910052802 copper Inorganic materials 0.000 description 1
239000012043 crude product Substances 0.000 description 1
239000013078 crystal Substances 0.000 description 1
238000002425 crystallisation Methods 0.000 description 1
230000008025 crystallization Effects 0.000 description 1
125000004122 cyclic group Chemical group 0.000 description 1
125000006841 cyclic skeleton Chemical group 0.000 description 1
238000006114 decarboxylation reaction Methods 0.000 description 1
238000004042 decolorization Methods 0.000 description 1
150000008049 diazo compounds Chemical class 0.000 description 1
XXTZHYXQVWRADW-UHFFFAOYSA-N diazomethanone Chemical compound [N]N=C=O XXTZHYXQVWRADW-UHFFFAOYSA-N 0.000 description 1
125000005594 diketone group Chemical group 0.000 description 1
238000007865 diluting Methods 0.000 description 1
YWEUIGNSBFLMFL-UHFFFAOYSA-N diphosphonate Chemical compound O=P(=O)OP(=O)=O YWEUIGNSBFLMFL-UHFFFAOYSA-N 0.000 description 1
229960003399 estrone Drugs 0.000 description 1
235000019439 ethyl acetate Nutrition 0.000 description 1
238000001914 filtration Methods 0.000 description 1
235000019253 formic acid Nutrition 0.000 description 1
239000007789 gas Substances 0.000 description 1
150000004820 halides Chemical class 0.000 description 1
150000007857 hydrazones Chemical class 0.000 description 1
229930195733 hydrocarbon Natural products 0.000 description 1
150000002430 hydrocarbons Chemical class 0.000 description 1
229940071870 hydroiodic acid Drugs 0.000 description 1
150000004679 hydroxides Chemical class 0.000 description 1
WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
229910052500 inorganic mineral Inorganic materials 0.000 description 1
PNDPGZBMCMUPRI-UHFFFAOYSA-N iodine Chemical compound II PNDPGZBMCMUPRI-UHFFFAOYSA-N 0.000 description 1
239000011777 magnesium Substances 0.000 description 1
229910052749 magnesium Inorganic materials 0.000 description 1
MJGFBOZCAJSGQW-UHFFFAOYSA-N mercury sodium Chemical compound [Na].[Hg] MJGFBOZCAJSGQW-UHFFFAOYSA-N 0.000 description 1
229910052751 metal Inorganic materials 0.000 description 1
239000002184 metal Substances 0.000 description 1
150000002739 metals Chemical class 0.000 description 1
239000011707 mineral Substances 0.000 description 1
235000010755 mineral Nutrition 0.000 description 1
230000004048 modification Effects 0.000 description 1
238000012986 modification Methods 0.000 description 1
230000007935 neutral effect Effects 0.000 description 1
239000003960 organic solvent Substances 0.000 description 1
235000006408 oxalic acid Nutrition 0.000 description 1
239000007800 oxidant agent Substances 0.000 description 1
230000003647 oxidation Effects 0.000 description 1
238000007254 oxidation reaction Methods 0.000 description 1
DLYUQMMRRRQYAE-UHFFFAOYSA-N phosphorus pentoxide Inorganic materials O1P(O2)(=O)OP3(=O)OP1(=O)OP2(=O)O3 DLYUQMMRRRQYAE-UHFFFAOYSA-N 0.000 description 1
239000011591 potassium Substances 0.000 description 1
229910052700 potassium Inorganic materials 0.000 description 1
229910000343 potassium bisulfate Inorganic materials 0.000 description 1
JWMFYGXQPXQEEM-WZBAXQLOSA-N pregnane Chemical compound C1CC2CCCC[C@]2(C)[C@@H]2[C@@H]1[C@@H]1CC[C@H](CC)[C@@]1(C)CC2 JWMFYGXQPXQEEM-WZBAXQLOSA-N 0.000 description 1
ORNBQBCIOKFOEO-QGVNFLHTSA-N pregnenolone Chemical compound C1C=C2C[C@@H](O)CC[C@]2(C)[C@@H]2[C@@H]1[C@@H]1CC[C@H](C(=O)C)[C@@]1(C)CC2 ORNBQBCIOKFOEO-QGVNFLHTSA-N 0.000 description 1
229960000249 pregnenolone Drugs 0.000 description 1
150000003132 pregnenolones Chemical class 0.000 description 1
239000011541 reaction mixture Substances 0.000 description 1
238000010992 reflux Methods 0.000 description 1
239000011734 sodium Substances 0.000 description 1
229910052708 sodium Inorganic materials 0.000 description 1
229910001023 sodium amalgam Inorganic materials 0.000 description 1
238000001179 sorption measurement Methods 0.000 description 1
238000003756 stirring Methods 0.000 description 1
238000000859 sublimation Methods 0.000 description 1
230000008022 sublimation Effects 0.000 description 1
125000001424 substituent group Chemical group 0.000 description 1
238000006467 substitution reaction Methods 0.000 description 1
150000003512 tertiary amines Chemical class 0.000 description 1
230000001225 therapeutic effect Effects 0.000 description 1
238000005292 vacuum distillation Methods 0.000 description 1