CN105439929B - 一种依泽麦布中间体的合成工艺 - Google Patents
一种依泽麦布中间体的合成工艺 Download PDFInfo
- Publication number
- CN105439929B CN105439929B CN201510946757.4A CN201510946757A CN105439929B CN 105439929 B CN105439929 B CN 105439929B CN 201510946757 A CN201510946757 A CN 201510946757A CN 105439929 B CN105439929 B CN 105439929B
- Authority
- CN
- China
- Prior art keywords
- ezetimibe
- synthesis technology
- added
- solvent
- ethyl
- 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.)
- Active
Links
- 230000015572 biosynthetic process Effects 0.000 title claims abstract description 22
- 238000003786 synthesis reaction Methods 0.000 title claims abstract description 22
- XXSSRSVXDNUAQX-QGZVFWFLSA-N 1-(4-fluorophenyl)-5-[(4s)-2-oxo-4-phenyl-1,3-oxazolidin-3-yl]pentane-1,5-dione Chemical compound C1=CC(F)=CC=C1C(=O)CCCC(=O)N1C(=O)OC[C@@H]1C1=CC=CC=C1 XXSSRSVXDNUAQX-QGZVFWFLSA-N 0.000 title claims abstract description 19
- 238000005516 engineering process Methods 0.000 title claims abstract description 19
- 239000002904 solvent Substances 0.000 claims abstract description 24
- 125000001255 4-fluorophenyl group Chemical group [H]C1=C([H])C(*)=C([H])C([H])=C1F 0.000 claims abstract description 19
- -1 (benzyloxy) phenyl Chemical group 0.000 claims abstract description 18
- XJDNKRIXUMDJCW-UHFFFAOYSA-J titanium tetrachloride Chemical compound Cl[Ti](Cl)(Cl)Cl XJDNKRIXUMDJCW-UHFFFAOYSA-J 0.000 claims abstract description 8
- 238000006555 catalytic reaction Methods 0.000 claims abstract description 7
- WDWDWGRYHDPSDS-UHFFFAOYSA-N methanimine Chemical compound N=C WDWDWGRYHDPSDS-UHFFFAOYSA-N 0.000 claims abstract description 7
- 238000007363 ring formation reaction Methods 0.000 claims abstract description 4
- 125000002485 formyl group Chemical class [H]C(*)=O 0.000 claims abstract 2
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical group ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 claims description 39
- 238000006243 chemical reaction Methods 0.000 claims description 33
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 21
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 14
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 claims description 10
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 claims description 10
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 claims description 8
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims description 8
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 claims description 8
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 8
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims description 6
- 150000001335 aliphatic alkanes Chemical class 0.000 claims description 4
- 230000009467 reduction Effects 0.000 claims description 3
- 238000006482 condensation reaction Methods 0.000 claims description 2
- 238000003682 fluorination reaction Methods 0.000 claims description 2
- 150000003242 quaternary ammonium salts Chemical class 0.000 claims description 2
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims description 2
- FPGGTKZVZWFYPV-UHFFFAOYSA-M tetrabutylammonium fluoride Chemical compound [F-].CCCC[N+](CCCC)(CCCC)CCCC FPGGTKZVZWFYPV-UHFFFAOYSA-M 0.000 abstract description 14
- 239000002994 raw material Substances 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 7
- IJOOHPMOJXWVHK-UHFFFAOYSA-N chlorotrimethylsilane Chemical compound C[Si](C)(C)Cl IJOOHPMOJXWVHK-UHFFFAOYSA-N 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 150000003952 β-lactams Chemical class 0.000 abstract description 3
- 238000009833 condensation Methods 0.000 abstract description 2
- 230000005494 condensation Effects 0.000 abstract description 2
- BOTNYLSAWDQNEX-UHFFFAOYSA-N phenoxymethylbenzene Chemical compound C=1C=CC=CC=1COC1=CC=CC=C1 BOTNYLSAWDQNEX-UHFFFAOYSA-N 0.000 abstract description 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 abstract description 2
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 abstract 3
- 239000001273 butane Substances 0.000 abstract 1
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 abstract 1
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 abstract 1
- 230000035484 reaction time Effects 0.000 abstract 1
- 239000012074 organic phase Substances 0.000 description 24
- 150000001875 compounds Chemical class 0.000 description 15
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 12
- 239000001301 oxygen Substances 0.000 description 12
- 229910052760 oxygen Inorganic materials 0.000 description 12
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 10
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 10
- 238000002360 preparation method Methods 0.000 description 10
- IMSODMZESSGVBE-UHFFFAOYSA-N 2-Oxazoline Chemical compound C1CN=CO1 IMSODMZESSGVBE-UHFFFAOYSA-N 0.000 description 8
- FKRCODPIKNYEAC-UHFFFAOYSA-N ethyl propionate Chemical compound CCOC(=O)CC FKRCODPIKNYEAC-UHFFFAOYSA-N 0.000 description 8
- 239000000047 product Substances 0.000 description 8
- 238000003756 stirring Methods 0.000 description 8
- SIPUZPBQZHNSDW-UHFFFAOYSA-N diisobutylaluminium hydride Substances CC(C)C[Al]CC(C)C SIPUZPBQZHNSDW-UHFFFAOYSA-N 0.000 description 7
- OLNTVTPDXPETLC-XPWALMASSA-N ezetimibe Chemical compound N1([C@@H]([C@H](C1=O)CC[C@H](O)C=1C=CC(F)=CC=1)C=1C=CC(O)=CC=1)C1=CC=C(F)C=C1 OLNTVTPDXPETLC-XPWALMASSA-N 0.000 description 7
- 229960000815 ezetimibe Drugs 0.000 description 7
- 238000000926 separation method Methods 0.000 description 7
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- JGFZNNIVVJXRND-UHFFFAOYSA-N N,N-Diisopropylethylamine (DIPEA) Chemical compound CCN(C(C)C)C(C)C JGFZNNIVVJXRND-UHFFFAOYSA-N 0.000 description 6
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 6
- HVYWMOMLDIMFJA-DPAQBDIFSA-N cholesterol Chemical compound C1C=C2C[C@@H](O)CC[C@]2(C)[C@@H]2[C@@H]1[C@@H]1CC[C@H]([C@H](C)CCCC(C)C)[C@@]1(C)CC2 HVYWMOMLDIMFJA-DPAQBDIFSA-N 0.000 description 6
- 239000012043 crude product Substances 0.000 description 6
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 6
- 238000005406 washing Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 4
- RJUFJBKOKNCXHH-UHFFFAOYSA-N Methyl propionate Chemical compound CCC(=O)OC RJUFJBKOKNCXHH-UHFFFAOYSA-N 0.000 description 4
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 4
- 229940017219 methyl propionate Drugs 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 4
- 238000004886 process control Methods 0.000 description 4
- 238000001953 recrystallisation Methods 0.000 description 4
- 238000005292 vacuum distillation Methods 0.000 description 4
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 3
- 239000003153 chemical reaction reagent Substances 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 239000003814 drug Substances 0.000 description 3
- 239000005457 ice water Substances 0.000 description 3
- 150000007530 organic bases Chemical class 0.000 description 3
- 229910000077 silane Inorganic materials 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000010189 synthetic method Methods 0.000 description 3
- 238000005160 1H NMR spectroscopy Methods 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 2
- 150000001263 acyl chlorides Chemical class 0.000 description 2
- 150000001299 aldehydes Chemical class 0.000 description 2
- 235000012000 cholesterol Nutrition 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 229940079593 drug Drugs 0.000 description 2
- 150000002148 esters Chemical group 0.000 description 2
- 125000000524 functional group Chemical group 0.000 description 2
- 150000002576 ketones Chemical class 0.000 description 2
- 238000005360 mashing Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- WBHQBSYUUJJSRZ-UHFFFAOYSA-M sodium bisulfate Chemical compound [Na+].OS([O-])(=O)=O WBHQBSYUUJJSRZ-UHFFFAOYSA-M 0.000 description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 0 *c1ccc([C@](C(C=O)C2=O)N2c(cc2)ccc2F)cc1 Chemical compound *c1ccc([C@](C(C=O)C2=O)N2c(cc2)ccc2F)cc1 0.000 description 1
- DDFHBQSCUXNBSA-UHFFFAOYSA-N 5-(5-carboxythiophen-2-yl)thiophene-2-carboxylic acid Chemical compound S1C(C(=O)O)=CC=C1C1=CC=C(C(O)=O)S1 DDFHBQSCUXNBSA-UHFFFAOYSA-N 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- 239000005046 Chlorosilane Substances 0.000 description 1
- 229940122502 Cholesterol absorption inhibitor Drugs 0.000 description 1
- 108091007403 Cholesterol transporters Proteins 0.000 description 1
- QUSNBJAOOMFDIB-UHFFFAOYSA-N Ethylamine Chemical compound CCN QUSNBJAOOMFDIB-UHFFFAOYSA-N 0.000 description 1
- IAPWRCRYBFEPIC-FGZHOGPDSA-N O=C[C@H]([C@@H](c(cc1)ccc1OCc1ccccc1)N1c(cc2)ccc2F)C1=O Chemical compound O=C[C@H]([C@@H](c(cc1)ccc1OCc1ccccc1)N1c(cc2)ccc2F)C1=O IAPWRCRYBFEPIC-FGZHOGPDSA-N 0.000 description 1
- 150000001336 alkenes Chemical group 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000003529 anticholesteremic agent Substances 0.000 description 1
- 125000002029 aromatic hydrocarbon group Chemical group 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical group 0.000 description 1
- HONIICLYMWZJFZ-UHFFFAOYSA-N azetidine Chemical compound C1CNC1 HONIICLYMWZJFZ-UHFFFAOYSA-N 0.000 description 1
- KFSZGBHNIHLIAA-UHFFFAOYSA-M benzyl(trimethyl)azanium;fluoride Chemical compound [F-].C[N+](C)(C)CC1=CC=CC=C1 KFSZGBHNIHLIAA-UHFFFAOYSA-M 0.000 description 1
- 125000000051 benzyloxy group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])O* 0.000 description 1
- IYYIVELXUANFED-UHFFFAOYSA-N bromo(trimethyl)silane Chemical compound C[Si](C)(C)Br IYYIVELXUANFED-UHFFFAOYSA-N 0.000 description 1
- GCSVCUMDOQKEMT-UHFFFAOYSA-N butan-1-amine;hydrofluoride Chemical compound [H+].[F-].CCCCN GCSVCUMDOQKEMT-UHFFFAOYSA-N 0.000 description 1
- KOPOQZFJUQMUML-UHFFFAOYSA-N chlorosilane Chemical compound Cl[SiH3] KOPOQZFJUQMUML-UHFFFAOYSA-N 0.000 description 1
- 238000004440 column chromatography Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000006264 debenzylation reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 235000019441 ethanol Nutrition 0.000 description 1
- 230000002440 hepatic effect Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 125000001820 oxy group Chemical group [*:1]O[*:2] 0.000 description 1
- 210000002381 plasma Anatomy 0.000 description 1
- 210000000813 small intestine Anatomy 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 125000003698 tetramethyl group Chemical group [H]C([H])([H])* 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D205/00—Heterocyclic compounds containing four-membered rings with one nitrogen atom as the only ring hetero atom
- C07D205/02—Heterocyclic compounds containing four-membered rings with one nitrogen atom as the only ring hetero atom not condensed with other rings
- C07D205/06—Heterocyclic compounds containing four-membered rings with one nitrogen atom as the only ring hetero atom not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member
- C07D205/08—Heterocyclic compounds containing four-membered rings with one nitrogen atom as the only ring hetero atom not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member with one oxygen atom directly attached in position 2, e.g. beta-lactams
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D263/00—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings
- C07D263/02—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings not condensed with other rings
- C07D263/08—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member
- C07D263/16—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D263/18—Oxygen atoms
- C07D263/20—Oxygen atoms attached in position 2
- C07D263/22—Oxygen atoms attached in position 2 with only hydrogen atoms or radicals containing only hydrogen and carbon atoms, directly attached to other ring carbon atoms
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Description
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201510946757.4A CN105439929B (zh) | 2015-12-16 | 2015-12-16 | 一种依泽麦布中间体的合成工艺 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201510946757.4A CN105439929B (zh) | 2015-12-16 | 2015-12-16 | 一种依泽麦布中间体的合成工艺 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN105439929A CN105439929A (zh) | 2016-03-30 |
CN105439929B true CN105439929B (zh) | 2018-08-21 |
Family
ID=55550630
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201510946757.4A Active CN105439929B (zh) | 2015-12-16 | 2015-12-16 | 一种依泽麦布中间体的合成工艺 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN105439929B (zh) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104072398A (zh) * | 2014-07-03 | 2014-10-01 | 河南省科学院化学研究所有限公司 | 一种合成依折麦布的方法 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ATE445596T1 (de) * | 2005-12-22 | 2009-10-15 | Medichem Sa | Verfahren zur herstellung von zwischenprodukten für die herstellung von ezetimibe |
-
2015
- 2015-12-16 CN CN201510946757.4A patent/CN105439929B/zh active Active
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104072398A (zh) * | 2014-07-03 | 2014-10-01 | 河南省科学院化学研究所有限公司 | 一种合成依折麦布的方法 |
Non-Patent Citations (2)
Title |
---|
A novel one-step diastereo- and enantioselective formation of trans-azetidinones and its application to the total synthesis of cholesterol absorption inhibitors;Guangzhong Wu等;《J. Org. Chem.》;19990421;第64卷(第10期);第3714-3718页 * |
依折麦布的合成;于振鹏等;《中国医药工业杂志》;20130510;第44卷(第5期);第424-428页 * |
Also Published As
Publication number | Publication date |
---|---|
CN105439929A (zh) | 2016-03-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US10100017B2 (en) | Processes for preparing olaparib | |
CN101935309A (zh) | 依泽替米贝的制备方法及其中间体 | |
JP6041985B2 (ja) | 結晶型t−ブチル2−[(4R,6S)−6−ホルミル−2,2−ジメチル−1,3−ジオキサン−4−イル]アセテート及びその製造方法 | |
CN105439929B (zh) | 一种依泽麦布中间体的合成工艺 | |
HUE031138T2 (en) | A method of producing lacosamide | |
CN102964307B (zh) | 一种达比加群酯有关物质及其制备方法 | |
CN105524010B (zh) | 一种依泽麦布中间体及其制备方法 | |
CN103130802B (zh) | 一种四氢-γ-咔啉类衍生物的合成方法 | |
CN109456221A (zh) | 一种乙酰苯胺衍生物的合成方法 | |
Liang et al. | Epoxide opening in water and screening in situ for rapid discovery of enzyme inhibitors in microtiter plates | |
CN105541742B (zh) | 一种依泽麦布中间体的制备方法 | |
WO2011141928A1 (en) | Process for the preparation of highly pure bexarotene | |
CN107216277B (zh) | 一种lcz696药物杂质的制备方法 | |
CN105294501A (zh) | 一种卡非佐米中间体化合物的制备方法 | |
JP2018502858A (ja) | フォロデシンの製造方法 | |
Crucianelli et al. | A novel conformationally restricted analogue of 3-methylaspartic acid via stereoselective methylation of chiral pyrrolidin-2-ones | |
Perissutti et al. | Design and synthesis of potential β-sheet nucleators via Suzuki coupling reaction | |
Chang et al. | CAN-mediated rearrangement of 4-benzhydrylidenepiperidines | |
WO2017168438A1 (en) | Process for preparing pure allyl protected keto derivative | |
EP1631533B1 (en) | Novel process for stereoselective reduction of beta-ketoesters | |
KR101868618B1 (ko) | (5-히드록시-4-옥소-4h-피란-2-일)메틸(2e)-3-(1,3-벤조디옥솔-5-일)아크릴레이트 화합물의 신규 제조 방법 및 이에 사용되는 신규 중간체 | |
JP7457940B2 (ja) | 1-(1-tert-ブトキシカルボニル-4-ピペリジルアセチル)-4-メシルオキシピペリジンの製造方法及び1-(1-tert-ブトキシカルボニル-4-ピペリジルアセチル)-4-メシルオキシピペリジン | |
CN102731489A (zh) | 一种依折麦布关键中间体的制备方法 | |
Saraei et al. | One Pot, Simple, and Efficient Synthesis of 2-Azetidinones Mediated by 3-(Diethoxyphosphoryloxy)-1, 2, 3-benzotriazin-4-(3H)-one | |
CN104030993B (zh) | 一种有机中间体三唑类衍生物的合成方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
TA01 | Transfer of patent application right | ||
TA01 | Transfer of patent application right |
Effective date of registration: 20180209 Address after: 215635 No. 528, Changjiang East Road, Yangzi International Chemical Industrial Park, Zhangjiagang, Jiangsu Applicant after: JIANGSU HANSYN PHARMACEUTICAL Co.,Ltd. Address before: 200231 Shanghai city Xuhui District Yindu Road No. 466, poly Park 2 Building 1 floor Applicant before: SHANGHAI HENGSHENG PHARMACEUTICAL CO.,LTD. |
|
GR01 | Patent grant | ||
GR01 | Patent grant | ||
EE01 | Entry into force of recordation of patent licensing contract | ||
EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20160330 Assignee: Jiangsu Jinmao Finance Leasing Co.,Ltd. Assignor: JIANGSU HANSYN PHARMACEUTICAL Co.,Ltd. Contract record no.: X2023320010006 Denomination of invention: Synthesis process of a kind of intermediate of ezemab Granted publication date: 20180821 License type: Exclusive License Record date: 20230106 |
|
PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Synthesis process of a kind of intermediate of ezemab Effective date of registration: 20230109 Granted publication date: 20180821 Pledgee: Jiangsu Jinmao Finance Leasing Co.,Ltd. Pledgor: JIANGSU HANSYN PHARMACEUTICAL Co.,Ltd. Registration number: Y2023320010023 |
|
EC01 | Cancellation of recordation of patent licensing contract | ||
EC01 | Cancellation of recordation of patent licensing contract |
Assignee: Jiangsu Jinmao Finance Leasing Co.,Ltd. Assignor: JIANGSU HANSYN PHARMACEUTICAL Co.,Ltd. Contract record no.: X2023320010006 Date of cancellation: 20240203 |
|
PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20180821 Pledgee: Jiangsu Jinmao Finance Leasing Co.,Ltd. Pledgor: JIANGSU HANSYN PHARMACEUTICAL Co.,Ltd. Registration number: Y2023320010023 |