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Isopropyl Acetate → (r)-5-Biphenyl-4-ylmethyl-3-[1-diisopropylamino-meth-(e)-ylidene]-2-oxo-pyrrolidine-1-carboxylic acid tert-butyl ester

HRID 2041634
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HRID 2041634 반응식
F[B-](F)(F)F.C(N(C(C)C)[CH:10]=[N+:11]([CH:15]([CH3:17])[CH3:16])[CH:12]([CH3:14])[CH3:13])(C)C.CC(C)([O-])C.[K+].[C:27]([O:31][C:32]([N:34]1[C:38](=[O:39])[CH2:37][CH2:36][C@H:35]1[CH2:40][C:41]1[CH:46]=[CH:45][C:44]([C:47]2[CH:52]=[CH:51][CH:50]=[CH:49][CH:48]=2)=[CH:43][CH:42]=1)=[O:33])([CH3:30])([CH3:29])[CH3:28].C(OC(C)C)(=O)C>C1COCC1>[C:27]([O:31][C:32]([N:34]1[C@H:35]([CH2:40][C:41]2[CH:42]=[CH:43][C:44]([C:47]3[CH:48]=[CH:49][CH:50]=[CH:51][CH:52]=3)=[CH:45][CH:46]=2)[CH2:36]/[C:37](=[CH:10]\[N:11]([CH:12]([CH3:13])[CH3:14])[CH:15]([CH3:16])[CH3:17])/[C:38]1=[O:39])=[O:33])([CH3:30])([CH3:28])[CH3:29]
참가 물질반응 조건실험 절차후처리출처 및 근거반응 노트

참가 물질

6

반응물 4

HCID 7915Isopropyl AcetateHCID 11077431N,N,N',N'-tetraisopropylformamidinium tetrafluoroborateHCID 23665647Potassium tert-butoxideHCID 46193436(S)-2-biphenyl-4-ylmethyl-5-oxopyrrolidine-1-carboxylic acid t-butyl ester

생성물 1

HCID 58160400(r)-5-Biphenyl-4-ylmethyl-3-[1-diisopropylamino-meth-(e)-ylidene]-2-oxo-pyrrolidine-1-carboxylic acid tert-butyl ester

시약·촉매·용매 1

HCID 8028Tetrahydrofuran용매

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온도
60 °C

실험 절차

N,N,N′,N′-tetraisopropylformamidinium tetrafluoroborate (2.13 g, prepared according to Example 11) is added to a 1 M solution of potassium-tert-butoxide in THF (5.69 ml). The resulting mixture is then stirred for 1 h at 50° C. (S)-2-Biphenyl-4-ylmethyl-5-oxo-pyrrolidine-1-carboxylic acid tert-butyl ester (8-a, R1=Boc) (500 mg) is then added and the mixture stirred at 60° C. for 1 h. The mixture is then cooled to room temperature and diluted by addition of 10 ml isopropyl acetate. The mixture is then filtered through silica and concentrated in vacuo to afford (R)-5-biphenyl-4-ylmethyl-3-[1-diisopropylamino-meth-(E)-ylidene]-2-oxo-pyrrolidine-1-carboxylic acid tert-butyl ester (7-a, R1=Boc, R6=iPr, R7=iPr). Spectroscopic data as for Example 19, Method 1.

후처리

  1. additionis then added
  2. temperatureThe mixture is then cooled to room temperature
  3. filtrationThe mixture is then filtered through silica
  4. concentrationconcentrated in vacuo

출처 및 근거

ORD 기록
ord-0d3c3ba6d0e74bd5bec5acf709d8b785
출처 데이터셋
uspto-grants-2013_11
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08580974B2

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