CN110272367A - 标记的维生素d2内标化合物的制备方法 - Google Patents
标记的维生素d2内标化合物的制备方法 Download PDFInfo
- Publication number
- CN110272367A CN110272367A CN201910392909.9A CN201910392909A CN110272367A CN 110272367 A CN110272367 A CN 110272367A CN 201910392909 A CN201910392909 A CN 201910392909A CN 110272367 A CN110272367 A CN 110272367A
- Authority
- CN
- China
- Prior art keywords
- reaction
- formula
- added
- ether
- organic phase
- 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.)
- Pending
Links
- 150000001875 compounds Chemical class 0.000 title claims abstract description 17
- MECHNRXZTMCUDQ-UHFFFAOYSA-N Vitamin D2 Natural products C1CCC2(C)C(C(C)C=CC(C)C(C)C)CCC2C1=CC=C1CC(O)CCC1=C MECHNRXZTMCUDQ-UHFFFAOYSA-N 0.000 title claims abstract description 15
- 229960002061 ergocalciferol Drugs 0.000 title claims abstract description 15
- 235000001892 vitamin D2 Nutrition 0.000 title claims abstract description 15
- 239000011653 vitamin D2 Substances 0.000 title claims abstract description 15
- MECHNRXZTMCUDQ-RKHKHRCZSA-N vitamin D2 Chemical compound C1(/[C@@H]2CC[C@@H]([C@]2(CCC1)C)[C@H](C)/C=C/[C@H](C)C(C)C)=C\C=C1\C[C@@H](O)CCC1=C MECHNRXZTMCUDQ-RKHKHRCZSA-N 0.000 title claims abstract description 14
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- 238000006243 chemical reaction Methods 0.000 claims abstract description 57
- -1 methyl grignard reagent Chemical class 0.000 claims abstract description 20
- FPGGTKZVZWFYPV-UHFFFAOYSA-M tetrabutylammonium fluoride Chemical compound [F-].CCCC[N+](CCCC)(CCCC)CCCC FPGGTKZVZWFYPV-UHFFFAOYSA-M 0.000 claims abstract description 18
- 125000002485 formyl group Chemical class [H]C(*)=O 0.000 claims abstract description 11
- 239000007818 Grignard reagent Substances 0.000 claims abstract description 9
- 150000008065 acid anhydrides Chemical class 0.000 claims abstract description 9
- 239000003054 catalyst Substances 0.000 claims abstract description 7
- 238000002372 labelling Methods 0.000 claims abstract description 7
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 55
- 239000012074 organic phase Substances 0.000 claims description 45
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 33
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims description 30
- 239000000243 solution Substances 0.000 claims description 27
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 claims description 23
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical group ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 claims description 18
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 16
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims description 15
- VHYFNPMBLIVWCW-UHFFFAOYSA-N 4-Dimethylaminopyridine Chemical compound CN(C)C1=CC=NC=C1 VHYFNPMBLIVWCW-UHFFFAOYSA-N 0.000 claims description 14
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 12
- 238000010791 quenching Methods 0.000 claims description 12
- 230000000171 quenching effect Effects 0.000 claims description 12
- 239000002904 solvent Substances 0.000 claims description 12
- 238000010898 silica gel chromatography Methods 0.000 claims description 11
- 238000005406 washing Methods 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 9
- 239000000758 substrate Substances 0.000 claims description 9
- 238000010792 warming Methods 0.000 claims description 9
- LCGLNKUTAGEVQW-UHFFFAOYSA-N Dimethyl ether Chemical group COC LCGLNKUTAGEVQW-UHFFFAOYSA-N 0.000 claims description 6
- BZLVMXJERCGZMT-UHFFFAOYSA-N Methyl tert-butyl ether Chemical compound COC(C)(C)C BZLVMXJERCGZMT-UHFFFAOYSA-N 0.000 claims description 6
- 239000012295 chemical reaction liquid Substances 0.000 claims description 6
- 239000012141 concentrate Substances 0.000 claims description 6
- 239000012043 crude product Substances 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 6
- 238000003810 ethyl acetate extraction Methods 0.000 claims description 6
- 150000004795 grignard reagents Chemical class 0.000 claims description 6
- DLEDOFVPSDKWEF-UHFFFAOYSA-N lithium butane Chemical compound [Li+].CCC[CH2-] DLEDOFVPSDKWEF-UHFFFAOYSA-N 0.000 claims description 6
- MZRVEZGGRBJDDB-UHFFFAOYSA-N n-Butyllithium Substances [Li]CCCC MZRVEZGGRBJDDB-UHFFFAOYSA-N 0.000 claims description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims description 6
- 239000012266 salt solution Substances 0.000 claims description 6
- 229920006395 saturated elastomer Chemical class 0.000 claims description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 5
- 229910052710 silicon Inorganic materials 0.000 claims description 5
- 239000010703 silicon Substances 0.000 claims description 5
- BSKHPKMHTQYZBB-UHFFFAOYSA-N 2-methylpyridine Chemical compound CC1=CC=CC=N1 BSKHPKMHTQYZBB-UHFFFAOYSA-N 0.000 claims description 4
- XTHFKEDIFFGKHM-UHFFFAOYSA-N Dimethoxyethane Chemical compound COCCOC XTHFKEDIFFGKHM-UHFFFAOYSA-N 0.000 claims description 4
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 claims description 4
- 125000000217 alkyl group Chemical group 0.000 claims description 4
- 239000008346 aqueous phase Substances 0.000 claims description 4
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 4
- 125000004469 siloxy group Chemical group [SiH3]O* 0.000 claims description 4
- ILMRJRBKQSSXGY-UHFFFAOYSA-N tert-butyl(dimethyl)silicon Chemical group C[Si](C)C(C)(C)C ILMRJRBKQSSXGY-UHFFFAOYSA-N 0.000 claims description 3
- WSLDOOZREJYCGB-UHFFFAOYSA-N 1,2-Dichloroethane Chemical class ClCCCl WSLDOOZREJYCGB-UHFFFAOYSA-N 0.000 claims description 2
- OISVCGZHLKNMSJ-UHFFFAOYSA-N 2,6-dimethylpyridine Chemical class CC1=CC=CC(C)=N1 OISVCGZHLKNMSJ-UHFFFAOYSA-N 0.000 claims description 2
- 125000004172 4-methoxyphenyl group Chemical group [H]C1=C([H])C(OC([H])([H])[H])=C([H])C([H])=C1* 0.000 claims description 2
- DCERHCFNWRGHLK-UHFFFAOYSA-N C[Si](C)C Chemical compound C[Si](C)C DCERHCFNWRGHLK-UHFFFAOYSA-N 0.000 claims description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 2
- 239000004305 biphenyl Substances 0.000 claims description 2
- 235000010290 biphenyl Nutrition 0.000 claims description 2
- 239000012267 brine Substances 0.000 claims description 2
- BLHLJVCOVBYQQS-UHFFFAOYSA-N ethyllithium Chemical compound [Li]CC BLHLJVCOVBYQQS-UHFFFAOYSA-N 0.000 claims description 2
- 229910052739 hydrogen Inorganic materials 0.000 claims description 2
- 239000001257 hydrogen Substances 0.000 claims description 2
- WGOPGODQLGJZGL-UHFFFAOYSA-N lithium;butane Chemical compound [Li+].CC[CH-]C WGOPGODQLGJZGL-UHFFFAOYSA-N 0.000 claims description 2
- IHLVCKWPAMTVTG-UHFFFAOYSA-N lithium;carbanide Chemical compound [Li+].[CH3-] IHLVCKWPAMTVTG-UHFFFAOYSA-N 0.000 claims description 2
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N phenylbenzene Natural products C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 claims description 2
- 239000000047 product Substances 0.000 claims description 2
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 claims description 2
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 claims description 2
- KTQKOGBTMNDCFG-UHFFFAOYSA-N tert-butyl(diphenyl)silicon Chemical compound C=1C=CC=CC=1[Si](C(C)(C)C)C1=CC=CC=C1 KTQKOGBTMNDCFG-UHFFFAOYSA-N 0.000 claims description 2
- HHSARRMUXPDGJD-UHFFFAOYSA-N butyl(dimethyl)silicon Chemical compound CCCC[Si](C)C HHSARRMUXPDGJD-UHFFFAOYSA-N 0.000 claims 1
- 125000004051 hexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 claims 1
- 210000002966 serum Anatomy 0.000 abstract description 7
- 238000001514 detection method Methods 0.000 abstract description 4
- 238000004885 tandem mass spectrometry Methods 0.000 abstract description 4
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 12
- 238000004895 liquid chromatography mass spectrometry Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- ZGLHBRQAEXKACO-XJRQOBMKSA-N 1alpha,25-dihydroxyvitamin D2 Chemical compound C1(/[C@@H]2CC[C@@H]([C@]2(CCC1)C)[C@@H](\C=C\[C@H](C)C(C)(C)O)C)=C\C=C1\C[C@@H](O)C[C@H](O)C1=C ZGLHBRQAEXKACO-XJRQOBMKSA-N 0.000 description 6
- 239000007787 solid Substances 0.000 description 5
- JWUBBDSIWDLEOM-XHQRYOPUSA-N (3e)-3-[(2e)-2-[1-(6-hydroxy-6-methylheptan-2-yl)-7a-methyl-2,3,3a,5,6,7-hexahydro-1h-inden-4-ylidene]ethylidene]-4-methylidenecyclohexan-1-ol Chemical compound C1CCC2(C)C(C(CCCC(C)(C)O)C)CCC2\C1=C\C=C1/CC(O)CCC1=C JWUBBDSIWDLEOM-XHQRYOPUSA-N 0.000 description 4
- 235000021318 Calcifediol Nutrition 0.000 description 4
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical class [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 4
- QYSXJUFSXHHAJI-XFEUOLMDSA-N Vitamin D3 Natural products C1(/[C@@H]2CC[C@@H]([C@]2(CCC1)C)[C@H](C)CCCC(C)C)=C/C=C1\C[C@@H](O)CCC1=C QYSXJUFSXHHAJI-XFEUOLMDSA-N 0.000 description 4
- 239000012230 colorless oil Substances 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 229930003316 Vitamin D Natural products 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 235000002639 sodium chloride Nutrition 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 238000003786 synthesis reaction Methods 0.000 description 3
- 235000019166 vitamin D Nutrition 0.000 description 3
- 239000011710 vitamin D Substances 0.000 description 3
- 150000003710 vitamin D derivatives Chemical class 0.000 description 3
- 229940046008 vitamin d Drugs 0.000 description 3
- 238000006546 Horner-Wadsworth-Emmons reaction Methods 0.000 description 2
- 206010047626 Vitamin D Deficiency Diseases 0.000 description 2
- 230000001749 antrachitic effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 210000004185 liver Anatomy 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000010189 synthetic method Methods 0.000 description 2
- 229940088594 vitamin Drugs 0.000 description 2
- 229930003231 vitamin Natural products 0.000 description 2
- 235000013343 vitamin Nutrition 0.000 description 2
- 239000011782 vitamin Substances 0.000 description 2
- GMRQFYUYWCNGIN-ZVUFCXRFSA-N 1,25-dihydroxy vitamin D3 Chemical compound C1([C@@H]2CC[C@@H]([C@]2(CCC1)C)[C@@H](CCCC(C)(C)O)C)=CC=C1C[C@@H](O)C[C@H](O)C1=C GMRQFYUYWCNGIN-ZVUFCXRFSA-N 0.000 description 1
- 208000023275 Autoimmune disease Diseases 0.000 description 1
- 208000024172 Cardiovascular disease Diseases 0.000 description 1
- 102000004190 Enzymes Human genes 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 206010067584 Type 1 diabetes mellitus Diseases 0.000 description 1
- 208000010928 autoimmune thyroid disease Diseases 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- MWKXCSMICWVRGW-UHFFFAOYSA-N calcium;phosphane Chemical compound P.[Ca] MWKXCSMICWVRGW-UHFFFAOYSA-N 0.000 description 1
- 201000011529 cardiovascular cancer Diseases 0.000 description 1
- 238000004440 column chromatography Methods 0.000 description 1
- 125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- DQYBDCGIPTYXML-UHFFFAOYSA-N ethoxyethane;hydrate Chemical compound O.CCOCC DQYBDCGIPTYXML-UHFFFAOYSA-N 0.000 description 1
- 210000000232 gallbladder Anatomy 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 230000000640 hydroxylating effect Effects 0.000 description 1
- 210000003734 kidney Anatomy 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 201000006417 multiple sclerosis Diseases 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 230000035764 nutrition Effects 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 206010039073 rheumatoid arthritis Diseases 0.000 description 1
- 238000004611 spectroscopical analysis Methods 0.000 description 1
- 239000003270 steroid hormone Substances 0.000 description 1
- 230000009885 systemic effect Effects 0.000 description 1
- 235000005282 vitamin D3 Nutrition 0.000 description 1
- 239000011647 vitamin D3 Substances 0.000 description 1
- QYSXJUFSXHHAJI-YRZJJWOYSA-N vitamin D3 Chemical compound C1(/[C@@H]2CC[C@@H]([C@]2(CCC1)C)[C@H](C)CCCC(C)C)=C\C=C1\C[C@@H](O)CCC1=C QYSXJUFSXHHAJI-YRZJJWOYSA-N 0.000 description 1
- 229940021056 vitamin d3 Drugs 0.000 description 1
- 150000003722 vitamin derivatives Chemical class 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07B—GENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS THEREFOR
- C07B59/00—Introduction of isotopes of elements into organic compounds ; Labelled organic compounds per se
- C07B59/001—Acyclic or carbocyclic compounds
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C401/00—Irradiation products of cholesterol or its derivatives; Vitamin D derivatives, 9,10-seco cyclopenta[a]phenanthrene or analogues obtained by chemical preparation without irradiation
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F7/00—Compounds containing elements of Groups 4 or 14 of the Periodic Table
- C07F7/02—Silicon compounds
- C07F7/08—Compounds having one or more C—Si linkages
- C07F7/18—Compounds having one or more C—Si linkages as well as one or more C—O—Si linkages
- C07F7/1804—Compounds having Si-O-C linkages
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F7/00—Compounds containing elements of Groups 4 or 14 of the Periodic Table
- C07F7/02—Silicon compounds
- C07F7/08—Compounds having one or more C—Si linkages
- C07F7/18—Compounds having one or more C—Si linkages as well as one or more C—O—Si linkages
- C07F7/1804—Compounds having Si-O-C linkages
- C07F7/1872—Preparation; Treatments not provided for in C07F7/20
- C07F7/1892—Preparation; Treatments not provided for in C07F7/20 by reactions not provided for in C07F7/1876 - C07F7/1888
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07B—GENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS THEREFOR
- C07B2200/00—Indexing scheme relating to specific properties of organic compounds
- C07B2200/05—Isotopically modified compounds, e.g. labelled
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2601/00—Systems containing only non-condensed rings
- C07C2601/12—Systems containing only non-condensed rings with a six-membered ring
- C07C2601/14—The ring being saturated
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2602/00—Systems containing two condensed rings
- C07C2602/02—Systems containing two condensed rings the rings having only two atoms in common
- C07C2602/14—All rings being cycloaliphatic
- C07C2602/24—All rings being cycloaliphatic the ring system containing nine carbon atoms, e.g. perhydroindane
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
本发明涉及一种标记的维生素D2内标化合物的制备方法,其包括如下步骤:先将下式(Ⅳ)γ‑酰胺磷盐化合物与下式(Ⅲ)醛,‑40~0℃反应得下式(Ⅴ)中间体; 再随后加入Boc酸酐和催化剂反应,再滴加同位素标记甲基格式试剂得下式(Ⅵ)中间体;
Description
技术领域
本发明涉及医药中间体的制备方法,特别涉及一种标记的维生素D2内标化合物,属于有机合成领域。
背景技术
维生素D(Vitamin D,VD) 是一类脂溶性类固醇激素前体,基本化学结构是胆固醇,具有抗佝偻病作用,又称抗佝偻病维生素,它是维持生命所必须的营养素。维生素D家族成员中最重要的成员是VD2(麦角钙化醇)和VD3(胆钙化醇)。不同来源的D2和D3都需要经过血液循环转运至肝脏,在肝酶的作用下首先转化为25-羟基维生素D(25-(OH)VD),这是体内VD的主要储存形式。25-(OH)VD再转运到肾脏,经过第二次羟基化形成1, 25-二羟基维生素D (1,25-(OH)2VD),这是活性最强的VD。
下式()的25-羟基维生素D2和下式()的1, 25-二羟基维生素D2是动物和人体内钙磷动态平衡的调节剂。25-羟基维生素D已经成为检测营养状况的功能性指标。维生素D缺乏症与自身免疫疾病,如1型糖尿病、多发性硬化症、系统性红斑狼疮、类风湿性关节炎、自身免疫性甲状腺疾病有关;维生素D缺乏症还和心血管疾病以及癌症相关。
串联质谱法检测人血清25-羟基维生素D,能同时准确测定25-羟基维生素D2和D3的浓度,且方法特异性好、抗干扰能力强,被公认为是检测人血清25-羟基维生素D的金标准。鉴于25-羟基维生素D2和1,25-二羟基维生素D2在人类健康中的重要作用,研究其合成方法是十分必要的。本发明提供了一种新的25-羟基维生素D2和1,25-二羟基维生素D2及其串联质谱法检测人血清中VD含量用同位素标记内标物化合物的制备方法。
目前公开的文献中没有关于25-羟基维生素D2和1,25-二羟基维生素D2及其串联质谱法检测人血清中VD含量用同位素标记内标物化合物的合成。非标记的25-羟基维生素D2和1,25-二羟基维生素D2的合成方法有以下几种:
方法一:下式(Ⅲ)醛与羟基保护的磷氧化合物发生Wittig-Horner反应,得到25-羟基维生素D2和1,25-二羟基维生素D2或者中间体(US20120130133、CN201210098034)。该方法合成简便,原料易得,但Wittig-Horner反应选择性不好,收率低。
方法二:式(Ⅲ)醛类似与γ-羟基磷盐化合物发生Wittig反应,得到25-羟基维生素D2和1,25-二羟基维生素D2的中间体(Tetrahedron Lett. 1991, 32, 5397-5400;Tetrahedron 1992, 48, 5151-5162)。该方法反应选择性好,但是收率低,文章仅仅报道了中间体体的合成。
发明内容
针对以上缺点,本发明的目的在于提供的一种标记的维生素D2内标化合物的制备方法,其制备的标记的维生素D2内标化合物可用于25-羟基维生素D2和1,25-二羟基维生素D2及其串联质谱法检测人血清中VD含量。
本发明提供的技术方案如下,一种标记的维生素D2内标化合物的制备方法,其包括如下步骤:
(1)、将下式(Ⅳ)γ-酰胺磷盐化合物溶于溶剂中后,氮气保护中在-40~0℃滴加强碱,滴加完毕后升温至室温反应1~3小时;然后再冷却至-40~0℃滴加下式(Ⅲ)醛,-40~0℃反应1~3小时后室温至室温反应8~14小时,然后加入稀盐酸淬灭反应,分出有机相,乙醚萃取水相,合并有机相,无水硫酸镁干燥;浓缩有机相,硅胶柱层析(石油醚/乙酸乙酯:5/1)纯化,得下式(Ⅴ)中间体;
其中R1为叔丁基二甲基硅基、三乙基硅基、三甲基硅基、叔丁基二苯基硅基等;R2为氢或叔丁基二甲基硅氧基、三乙基硅氧基、三甲基硅氧基、叔丁基二苯基硅氧基等R3为苯基、取代苯基或者烷基;R4为苯基、取代苯基或者烷基;
强碱为甲基锂、乙基锂、正丁基锂或仲丁基锂;
溶剂为乙醚、甲基叔丁基醚、四氢呋喃(THF)或乙二醇二甲醚;
式(Ⅳ)γ-酰胺磷盐化合物与强碱的摩尔比为1:1.5~1:3;
式(Ⅳ)γ-酰胺磷盐化合物与式(Ⅲ)醛的摩尔比为1:1~1.5:1;
式(Ⅳ)γ-酰胺磷盐化合物与溶剂的重量体积比(g:ml)为1:8~1:15;
(2)、在上述制得的式(Ⅴ)中间体加入到反应溶剂中,随后加入Boc酸酐和催化剂,室温搅拌反应6~15小时,反应结束后先后用稀盐酸和饱和食盐水依次洗涤反应液,无水硫酸镁干燥,最后浓缩有机相;往浓缩物中加入无水乙醚,控制温度0℃,缓慢滴加同位素标记甲基格式试剂,滴加完毕后室温搅拌1~5小时,反应结束后用稀盐酸淬灭反应,分出有机相,饱和食盐水洗涤,无水硫酸镁干燥,最后浓缩有机相得下式(Ⅵ)中间体;
其中R为甲基-D3、甲基-13C或甲基-13C, D3;
反应溶剂为二氯甲烷、1,2-二氯乙烷、乙醚、甲基叔丁基醚或四氢呋喃;
催化剂为吡啶、2-甲基吡啶、2,6-二甲基吡啶或4-二甲氨基吡啶(DMAP)中;
式(Ⅴ)中间体与催化剂的摩尔比1:0.05~1:0.15;
式(Ⅴ)中间体与反应溶剂的重量体积比(g:ml)为1:10~1:25;
式(Ⅴ)中间体与Boc酸酐的摩尔比1:2~1:3;
式(Ⅴ)中间体与同位素标记甲基格式试剂的摩尔比1:1~1:1.5;
(3)、将步骤(2)中制得的式(Ⅵ)中间体加入到溶剂中,然后加入四丁基氟化铵(TBAF),室温搅拌反应8~14小时,反应结束后加入水稀释反应液,乙酸乙酯萃取,无水硫酸镁干燥有机相,浓缩有机相得粗品,硅胶柱层析(石油醚/乙酸乙酯:3/1)纯化,得成品标记的维生素D2内标化合物;
溶剂为乙醚、甲基叔丁基醚、四氢呋喃或乙二醇二甲醚;
式(Ⅵ)中间体与四丁基氟化铵的摩尔比为1:0.5~1:0.15;
式(Ⅵ)中间体与溶剂的重量体积比(g:ml)为1:10~1:25。
在上述一种标记的维生素D2内标化合物的制备方法中R1优先叔丁基二甲基硅基和三乙基硅基; R2优先叔丁基二甲基硅氧基和三乙基硅氧基; R3优先苯基和环己基;R4优先苯基和对甲氧基苯基。
本发明与现有技术相比所具有的优点为:本发明制备的标记的维生素D2内标化合物可用于25-羟基维生素D2和1,25-二羟基维生素D2及其串联质谱法检测人血清中VD含量。
具体实施方式
以下将结合具体的实施例来说明本发明的技术方案。
实施例1:
将下式(Ⅳ-1)酰胺磷盐化合物(1.10 g,2 mmol)加入乙醚中(10 mL),氮气置换,开启搅拌,控制温度为-20℃,缓慢加入正丁基锂的正己烷溶液(2.5M, 1.6 mL, 4 mol),溶液变红色,滴加完毕后, 升温至室温,搅拌反应2小时;随后将反应液冷却至-20℃,缓慢加入下式(Ⅲ)醛(0.89 g,2 mmol)在乙醚中的溶液,溶液红色消失,恒温搅拌反应2小时,升温至室温搅拌过夜;加入稀盐酸淬灭反应,分出有机相,乙醚萃取水相,合并有机相,无水硫酸镁干燥;浓缩有机相,硅胶柱层析(石油醚/乙酸乙酯:5/1)纯化,得无色油状物下式(Ⅴ-1)中间体0.68 g,收率57.6%,LC-MS(ESI,[M+H]+)m/z: 588.43;
将上述制得的下式(Ⅴ-1)中间体(0.59 g,1 mmol)加入二氯甲烷中(10 mL),随后加入Boc酸酐(0.44 g, 2 mmol)和0.1 mmol DMAP, 室温搅拌反应过夜;反应完全后,先后用稀盐酸和饱和食盐水依次洗涤反应液,无水硫酸镁干燥,最后浓缩有机相;往浓缩物中加入无水乙醚(10 mL),控制温度0℃,缓慢滴加CD3MgI格式试剂(1M, 2 mL, 2 mmol),滴加完毕后室温搅拌2小时, 用稀盐酸淬灭反应,分出有机相,饱和食盐水洗涤, 无水硫酸镁干燥,最后浓缩有机相得下式(Ⅵ- Ⅰ -D6)中间体;往制得的式(Ⅵ- Ⅰ -D6)中间体中加入THF(12mL),随后加入TBAF三水合物( 1.26 g, 4 mmol),室温搅拌反应过夜;反应完全后,加入水稀释反应液,乙酸乙酯萃取,无水硫酸镁干燥有机相,浓缩有机相得粗品,硅胶柱层析(石油醚/乙酸乙酯:3/1)纯化,得0.34 g白色固体为下式(Ⅰ-D6)25-羟基维生素D2-D6,三步总收率80.9%;LC-MS(ESI,[M+H]+)m/z: 418.35;
;
反应方程式如下:
。
实施例2:
将下式(Ⅳ-1)酰胺磷盐化合物(1.10 g,2 mmol)加入THF中(10 mL),氮气置换,开启搅拌,控制温度为-20℃,缓慢加入正丁基锂的正己烷溶液(2.5M, 1.6 mL, 4 mol),溶液变红色,滴加完毕后, 升温至0℃,搅拌反应2小时;随后将反应液冷却至-20℃,缓慢加入下式(Ⅲ-1)醛(0.89 g,2 mmol)在THF中的溶液,溶液红色消失,恒温搅拌反应2小时,升温至室温搅拌过夜;加入稀盐酸淬灭反应,乙醚萃取两次,合并有机相,无水硫酸镁干燥;浓缩有机相,硅胶柱层析(石油醚/乙酸乙酯:5/1)纯化,得无色油状物下式(Ⅴ-1)中间体 0.62 g,收率52.5%;
LC-MS(ESI,[M+H]+)m/z: 588.43;
将上述制得的下式(Ⅴ-1)中间体(0.59 g,1 mmol)加入二氯甲烷中(10 mL),随后加入Boc酸酐(0.44 g, 2 mmol)和0.1摩尔DMAP, 室温搅拌反应过夜;反应完全后,先后用稀盐酸和饱和食盐水依次洗涤反应液,无水硫酸镁干燥,最后浓缩有机相;往浓缩物中加入无水乙醚(10 mL),控制温度0℃,缓慢滴加13CH3MgI格式试剂(1M, 2.2 mL, 2.2 mmol),滴加完毕后室温搅拌2小时, 用稀盐酸淬灭反应,分出有机相,饱和食盐水洗涤, 无水硫酸镁干燥,最后浓缩有机相得下式(Ⅵ-1-13C2)中间体;往制得的式(Ⅵ-1-13C2)中间体中加入THF(12 mL),随后加入TBAF三水合物( 1.26 g, 4 mmol),室温搅拌反应过夜;反应完全后,加入水稀释反应液,乙酸乙酯萃取,无水硫酸镁干燥有机相,浓缩有机相得粗品,硅胶柱层析(石油醚/乙酸乙酯:3/1)纯化,得0.36g白色固体为下式(Ⅰ-13C2)25-羟基维生素D2-13C2,三步总收率86.5%;
LC-MS(ESI,[M+H]+)m/z: 414.36;
反应方程式如下
。
实施例3:
将下式(Ⅳ-1)酰胺磷盐化合物(1.10 g,2 mmol)加入THF中(10 mL),氮气置换,开启搅拌,控制温度为-20℃,缓慢加入正丁基锂的正己烷溶液(2.5M, 1.6 mL, 4 mol),溶液变红色,滴加完毕后, 升温至0℃,搅拌反应2小时;随后将反应液冷却至-20℃,缓慢加入下式(Ⅲ-1)醛(0.89 g,2 mmol)在THF中的溶液,溶液红色消失,恒温搅拌反应2小时,升温至室温搅拌过夜;加入稀盐酸淬灭反应,乙醚萃取两次,合并有机相,无水硫酸镁干燥;浓缩有机相,硅胶柱层析(石油醚/乙酸乙酯:5/1)纯化,得无色油状物为下式(Ⅴ-1)中间体0.62 g,收率52.5%;
LC-MS(ESI,[M+H]+)m/z: 588.43;
将上述制得的式(Ⅴ-1)中间体(0.59 g,1 mmol)加入二氯甲烷中(10 mL),随后加入Boc酸酐(0.44 g, 2 mmol)和0.1摩尔DMAP, 室温搅拌反应过夜;反应完全后,先后用稀盐酸和饱和食盐水依次洗涤反应液,无水硫酸镁干燥,最后浓缩有机相;往浓缩物中加入无水乙醚(10 mL),控制温度0℃,缓慢滴加13CD3MgI格式试剂(1M, 2.2 mL, 2.2 mmol),滴加完毕后室温搅拌2小时, 用稀盐酸淬灭反应,分出有机相,饱和食盐水洗涤, 无水硫酸镁干燥,最后浓缩有机相得下式(Ⅵ- Ⅰ -13C2D6)中间体;往制得的式(Ⅵ- Ⅰ -13C2D6)中间体中加入THF(12 mL),随后加入TBAF三水合物( 1.26 g, 4 mmol),室温搅拌反应过夜;反应完全后,加入水稀释反应液,乙酸乙酯萃取,无水硫酸镁干燥有机相,浓缩有机相得粗品,硅胶柱层析(石油醚/乙酸乙酯:3/1)纯化,得白色固体0.35g 为下式(I-13C2D6)25-羟基维生素D2-13C2, D6,三步总收率83.1%;
LC-MS(ESI,[M+H]+)m/z: 420.35;
反应方程式如下:
。
实施例4:
将下式(Ⅳ-1)酰胺磷盐化合物Ⅳ-1(1.10 g,2 mmol)加入乙醚中(10 mL),氮气置换,开启搅拌,控制温度为-20℃,缓慢加入正丁基锂的正己烷溶液(2.5M, 1.6 mL, 4 mol),溶液变红色,滴加完毕后, 升温至室温,搅拌反应2小时;随后将反应液冷却至-20℃,缓慢加入下式(Ⅲ-2)醛(1.15 g,2 mmol)在乙醚中的溶液,溶液红色消失,恒温搅拌反应2小时,升温至室温搅拌过夜;加入稀盐酸淬灭反应,分出有机相,乙醚萃取水相,合并有机相,无水硫酸镁干燥;浓缩有机相,硅胶柱层析(石油醚/乙酸乙酯:5/1)纯化,得无色油状物为下式(Ⅴ-2)中间体0.89 g,收率61.8%;
LC-MS(ESI,[M+H]+)m/z: 717.56;
将上述制得的式(Ⅴ-2)中间体(0.72 g,1 mmol)加入二氯甲烷中(10 mL),随后加入Boc酸酐(0.44 g, 2 mmol)和0.1摩尔DMAP, 室温搅拌反应过夜;反应完全后,先后用稀盐酸和饱和食盐水依次洗涤反应液,无水硫酸镁干燥,浓缩有机相;往浓缩物中加入无水乙醚(10 mL),控制温度0℃,缓慢滴加CD3MgI格式试剂(1M, 2.2 mL, 2.2 mmol),滴加完毕后室温搅拌2小时, 用稀盐酸淬灭反应,分出有机相,饱和食盐水洗涤, 无水硫酸镁干燥,浓缩有机相的下式(Ⅵ--D6)中间体;往制得的式(Ⅵ--D6)中间体中加入THF(12 mL),随后加入TBAF三水合物( 1.26 g, 4 mmol),室温搅拌反应过夜;反应完全后,加入水稀释反应液,乙酸乙酯萃取,无水硫酸镁干燥有机相,浓缩有机相得粗品,硅胶柱层析(石油醚/乙酸乙酯:3/1)纯化,得白色固体0.34 g 为下式(-D6)1,25-二羟基维生素D2-D6,三步总收率78.0%;
LC-MS(ESI,[M+H]+)m/z: 434.36;
反应方程式如下:
。
Claims (2)
1.一种标记的维生素D2内标化合物的制备方法,其包括如下步骤:
(1)、将下式(Ⅳ)γ-酰胺磷盐化合物溶于溶剂中后,氮气保护中在-40~0℃滴加强碱,滴加完毕后升温至室温反应1~3小时;然后再冷却至-40~0℃滴加下式(Ⅲ)醛,-40~0℃反应1~3小时后室温至室温反应8~14小时,然后加入稀盐酸淬灭反应,分出有机相,乙醚萃取水相,合并有机相,无水硫酸镁干燥;浓缩有机相,硅胶柱层析(石油醚/乙酸乙酯:5/1)纯化,得下式(Ⅴ)中间体;
其中R1为叔丁基二甲基硅基、三乙基硅基、三甲基硅基、叔丁基二苯基硅基等;R2为氢或叔丁基二甲基硅氧基、三乙基硅氧基、三甲基硅氧基、叔丁基二苯基硅氧基等R3为苯基、取代苯基或者烷基;R4为苯基、取代苯基或者烷基;
强碱为甲基锂、乙基锂、正丁基锂或仲丁基锂;
溶剂为乙醚、甲基叔丁基醚、四氢呋喃或乙二醇二甲醚;
式(Ⅳ)γ-酰胺磷盐化合物与强碱的摩尔比为1:1.5~1:3;
式(Ⅳ)γ-酰胺磷盐化合物与式(Ⅲ)醛的摩尔比为1:1~1.5:1;
式(Ⅳ)γ-酰胺磷盐化合物与溶剂的重量体积比(g:ml)为1:8~1:15;
(2)、在上述制得的式(Ⅴ)中间体加入到反应溶剂中,随后加入Boc酸酐和催化剂,室温搅拌反应6~15小时,反应结束后先后用稀盐酸和饱和食盐水依次洗涤反应液,无水硫酸镁干燥,最后浓缩有机相;往浓缩物中加入无水乙醚,控制温度0℃,缓慢滴加同位素标记甲基格式试剂,滴加完毕后室温搅拌1~5小时,反应结束后用稀盐酸淬灭反应,分出有机相,饱和食盐水洗涤,无水硫酸镁干燥,最后浓缩有机相得下式(Ⅵ)中间体;
其中R为甲基-D3、甲基-13C或甲基-13C, D3;
反应溶剂为二氯甲烷、1,2-二氯乙烷、乙醚、甲基叔丁基醚或四氢呋喃;
催化剂为吡啶、2-甲基吡啶、2,6-二甲基吡啶或4-二甲氨基吡啶中;
式(Ⅴ)中间体与催化剂的摩尔比1:0.05~1:0.15;
式(Ⅴ)中间体与反应溶剂的重量体积比(g:ml)为1:10~1:25;
式(Ⅴ)中间体与Boc酸酐的摩尔比1:2~1:3;
式(Ⅴ)中间体与同位素标记甲基格式试剂的摩尔比1:1~1:1.5;
(3)、将步骤(2)中制得的式(Ⅵ)中间体加入到溶剂中,然后加入四丁基氟化铵(TBAF),室温搅拌反应8~14小时,反应结束后加入水稀释反应液,乙酸乙酯萃取,无水硫酸镁干燥有机相,浓缩有机相得粗品,硅胶柱层析(石油醚/乙酸乙酯:3/1)纯化,得成品标记的维生素D2内标化合物;
溶剂为乙醚、甲基叔丁基醚、四氢呋喃或乙二醇二甲醚;
式(Ⅵ)中间体与四丁基氟化铵的摩尔比为1:0.5~1:0.15;
式(Ⅵ)中间体与溶剂的重量体积比(g:ml)为1:10~1:25。
2.根据权利要求1所述的一种标记的维生素D2内标化合物的制备方法,其特征为R1为叔丁基二甲基硅基或三乙基硅基; R2为叔丁基二甲基硅氧基或三乙基硅氧基; R3为苯基或环己基;R4为苯基或对甲氧基苯基。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910392909.9A CN110272367A (zh) | 2019-05-13 | 2019-05-13 | 标记的维生素d2内标化合物的制备方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910392909.9A CN110272367A (zh) | 2019-05-13 | 2019-05-13 | 标记的维生素d2内标化合物的制备方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN110272367A true CN110272367A (zh) | 2019-09-24 |
Family
ID=67959198
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201910392909.9A Pending CN110272367A (zh) | 2019-05-13 | 2019-05-13 | 标记的维生素d2内标化合物的制备方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN110272367A (zh) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111518006A (zh) * | 2020-05-26 | 2020-08-11 | 无锡贝塔医药科技有限公司 | 25-羟基维生素D3和1α,25-二羟基维生素D3及其同位素内标化合物的制备方法 |
CN115947678A (zh) * | 2023-03-10 | 2023-04-11 | 成都诺森医学检验有限公司 | 稳定同位素2h(d)标记25-羟基维生素d2的合成方法 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0528209A1 (en) * | 1991-08-09 | 1993-02-24 | F. Hoffmann-La Roche Ag | Process for preparing intermediates for vitamin D derivatives and novel compounds obtained thereby |
US20120130133A1 (en) * | 2008-11-26 | 2012-05-24 | Cytochroma Inc. | Method For Synthesizing Vitamin D Analogs |
CN102643302A (zh) * | 2012-04-06 | 2012-08-22 | 上海皓元化学科技有限公司 | 25-羟基维生素D2和1α,25-二羟基维生素D2合成中间体的制备方法 |
CN103980172A (zh) * | 2014-04-26 | 2014-08-13 | 湖南华腾制药有限公司 | 一种1α,25-二羟基维生素D2的制备方法 |
CN106008302A (zh) * | 2016-06-16 | 2016-10-12 | 无锡贝塔医药科技有限公司 | 一种维生素d2衍生物的制备方法 |
-
2019
- 2019-05-13 CN CN201910392909.9A patent/CN110272367A/zh active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0528209A1 (en) * | 1991-08-09 | 1993-02-24 | F. Hoffmann-La Roche Ag | Process for preparing intermediates for vitamin D derivatives and novel compounds obtained thereby |
US20120130133A1 (en) * | 2008-11-26 | 2012-05-24 | Cytochroma Inc. | Method For Synthesizing Vitamin D Analogs |
CN102643302A (zh) * | 2012-04-06 | 2012-08-22 | 上海皓元化学科技有限公司 | 25-羟基维生素D2和1α,25-二羟基维生素D2合成中间体的制备方法 |
CN103980172A (zh) * | 2014-04-26 | 2014-08-13 | 湖南华腾制药有限公司 | 一种1α,25-二羟基维生素D2的制备方法 |
CN106008302A (zh) * | 2016-06-16 | 2016-10-12 | 无锡贝塔医药科技有限公司 | 一种维生素d2衍生物的制备方法 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111518006A (zh) * | 2020-05-26 | 2020-08-11 | 无锡贝塔医药科技有限公司 | 25-羟基维生素D3和1α,25-二羟基维生素D3及其同位素内标化合物的制备方法 |
CN115947678A (zh) * | 2023-03-10 | 2023-04-11 | 成都诺森医学检验有限公司 | 稳定同位素2h(d)标记25-羟基维生素d2的合成方法 |
CN115947678B (zh) * | 2023-03-10 | 2024-01-16 | 成都诺森医学检验有限公司 | 稳定同位素2h(d)标记25-羟基维生素d2的合成方法 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN110272367A (zh) | 标记的维生素d2内标化合物的制备方法 | |
EP0187259B1 (en) | Process for producing vitamin a or its carboxylic acid esters, and intermediate compounds useful for the process | |
CN105218609A (zh) | 一种以孕烯醇酮为原料合成胆固醇的方法 | |
CN111518006A (zh) | 25-羟基维生素D3和1α,25-二羟基维生素D3及其同位素内标化合物的制备方法 | |
CN108558692A (zh) | 一种酰胺类化合物的制备方法 | |
WO1999020605A1 (en) | D-homo-9,10-secocholesta-23-yne-3,25-diol derivatives | |
CN106008302B (zh) | 一种维生素d2衍生物的制备方法 | |
Yamamura et al. | Photoswitching of the reactivity involving hydrosilylation of a 1, 1, 3, 3-tetrahydrodisiloxane bearing two azo groups | |
Ghera et al. | Synthetic methods. 36. Utilization of ethyl 2-((phenylsulfonyl) methyl) acrylate for the synthesis of. alpha.-methylenevalerolactones | |
US8026379B2 (en) | Paricalcitol intermediates | |
US5939507A (en) | Method for manufacturing siloxane compounds | |
CN110615750B (zh) | 一种含氟二硫化物的合成方法 | |
Drabowicz et al. | Diastereomeric sulfinates derived from (l)-N-methylephedrine: synthesis, applications and rearrangements | |
EP3056491B1 (en) | Synthetic intermediate of maxacalcitol, preparation method therefor and use thereof | |
US20230287018A1 (en) | Process for preparing siloxanes | |
CA2199893C (en) | 1,25-dihydroxy-16,22,23-trisdehydro-cholecalciferol derivatives | |
US6258971B1 (en) | Method for making organooxysilanes | |
CN115124570B (zh) | 一种c3膦盐的制备方法 | |
CN109824553A (zh) | 2–((叔丁氧基羰基)氨基)乙基-1-磺酸及其制备方法 | |
CN104418735A (zh) | 一种金刚烷单酯的制备方法 | |
CN104326883B (zh) | 一种金催化不对称醚的合成方法 | |
CN105294807A (zh) | 一种依西美坦中间体肟化合物及其制备方法和应用 | |
CN102329204B (zh) | 一种碳壳菌聚酮类化合物的制备方法 | |
US20170217786A1 (en) | Method for producing metal carbonate and catalyst for producing the same | |
EP1700852A1 (en) | Processes for producing alkyl 3-(4-tetrahydropyranyl)-3-oxopropionate compound and 4-acyltetrahydropyran |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190924 |
|
WD01 | Invention patent application deemed withdrawn after publication |