1,1'-(9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(1,1-diphenylphosphine) → 4-[5-(4-Methanesulfonyl-piperazin-1-yl)-2-methyl-2,3-dihydro-furo[2,3-c]pyridin-2-yl]-piperidine-1-carboxylic acid tert-butyl ester

HRID 1184776노트

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HRID 1184776 반응식
[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][CH:11]([C:14]2([CH3:24])[O:23][C:17]3=[CH:18][N:19]=[C:20](Cl)[CH:21]=[C:16]3[CH2:15]2)[CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].Cl.[CH3:26][S:27]([N:30]1[CH2:35][CH2:34][NH:33][CH2:32][CH2:31]1)(=[O:29])=[O:28].CC1(C)C2C(=C(P(C3C=CC=CC=3)C3C=CC=CC=3)C=CC=2)OC2C(P(C3C=CC=CC=3)C3C=CC=CC=3)=CC=CC1=2.CC([O-])(C)C.[K+]>C1(C)C=CC=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.[Pd].[Pd].O>[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][CH:11]([C:14]2([CH3:24])[O:23][C:17]3=[CH:18][N:19]=[C:20]([N:33]4[CH2:34][CH2:35][N:30]([S:27]([CH3:26])(=[O:29])=[O:28])[CH2:31][CH2:32]4)[CH:21]=[C:16]3[CH2:15]2)[CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2]

참가 물질

8

반응물 4

HCID 6360441,1'-(9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(1,1-diphenylphosphine)HCID 162656121-Methanesulfonylpiperazine hydrochlorideHCID 23665647Potassium tert-butoxideHCID 866749014-(5-Chloro-2-methyl-2,3-dihydrofuro[2,3-c]pyridin-2-yl)piperidine-1-carboxylic acid tert-butyl ester

생성물 1

HCID 679902714-[5-(4-Methanesulfonyl-piperazin-1-yl)-2-methyl-2,3-dihydro-furo[2,3-c]pyridin-2-yl]-piperidine-1-carboxylic acid tert-butyl ester

시약·촉매·용매 3

HCID 9811564Bis(dibenzylideneacetone)palladium촉매HCID 962Water용매HCID 1140Toluene용매

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온도
105 °C

실험 절차

4-(5-Chloro-2-methyl-2,3-dihydro-furo[2,3-c]pyridin-2-yl)-piperidine-1-carboxylic acid tert-butyl ester (100 mg) is added to a mixture of 1-(methylsulfonyl)piperazine hydrochloride (70 mg), Pd2(dba)3 (65 mg), Xantphos (123 mg), and potassium tert-butylate (75 mg) in toluene (4 mL) under an argon atmosphere. The reaction mixture is stirred in an oil bath at 105° C. over night. After cooling to room temperature water is added and the mixture is extracted with ethyl acetate. The combined extracts are concentrated in vacuo and the residue is chromatographed on silica gel (cyclohexane/ethyl acetate 50:50→0:100) to give the title compound. LC (method 1): tR=1.03 min; Mass spectrum (ESI+): m/z=481 [M+H]+.

후처리

  1. additionis added
  2. extractionthe mixture is extracted with ethyl acetate
  3. concentrationThe combined extracts are concentrated in vacuo
  4. customthe residue is chromatographed on silica gel (cyclohexane/ethyl acetate 50:50→0:100)

출처 및 근거

ORD 기록
ord-3b0a3207384e4f828e02748b94c924cb
출처 데이터셋
uspto-grants-2014_03
특허 번호
US08669271B2

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