1-Ethyl-3-(3'-dimethylaminopropyl)carbodiimide → Ethyl 3-[6-(5-{5-fluoro-6-[(1-methylethyl)oxy]-3-pyridinyl}-1,2,4-oxadiazol-3-yl)-1H-indol-3-yl]propanoate

HRID 1512812노트

반응식

HRID 1512812 반응식
CCN=C=NCCCN(C)C.C1C=CC2N(O)N=NC=2C=1.[F:22][C:23]1[CH:24]=[C:25]([C:33]([OH:35])=O)[CH:26]=[N:27][C:28]=1[O:29][CH:30]([CH3:32])[CH3:31].O[NH:37]/[C:38](=[N:55]\[H])/[C:39]1[CH:47]=[C:46]2[C:42]([C:43]([CH2:48][CH2:49][C:50]([O:52][CH2:53][CH3:54])=[O:51])=[CH:44][NH:45]2)=[CH:41][CH:40]=1.CCCC[N+](CCCC)(CCCC)CCCC.[F-]>C1COCC1>[F:22][C:23]1[CH:24]=[C:25]([C:33]2[O:35][N:55]=[C:38]([C:39]3[CH:47]=[C:46]4[C:42]([C:43]([CH2:48][CH2:49][C:50]([O:52][CH2:53][CH3:54])=[O:51])=[CH:44][NH:45]4)=[CH:41][CH:40]=3)[N:37]=2)[CH:26]=[N:27][C:28]=1[O:29][CH:30]([CH3:31])[CH3:32]

참가 물질

7

반응물 5

HCID 159081-Ethyl-3-(3'-dimethylaminopropyl)carbodiimideHCID 757711-HydroxybenzotriazoleHCID 2724141Tetrabutylammonium FluorideHCID 670253325-Fluoro-6-isopropoxynicotinic acidHCID 178506487HCID 178506487, 화합물

생성물 1

HCID 59146084Ethyl 3-[6-(5-{5-fluoro-6-[(1-methylethyl)oxy]-3-pyridinyl}-1,2,4-oxadiazol-3-yl)-1H-indol-3-yl]propanoate수율 13.6%

시약·촉매·용매 1

HCID 8028Tetrahydrofuran용매2회

실험 절차

EDCI (385 mg) and HOBT (330 mg) were added to a solution of 5-fluoro-6-[(1-methylethyl)oxy]-3-pyridinecarboxylic acid (200 mg) in THF (5 mL) at RT. The resulting solution was stirred for 30 mins. Ethyl 3-{6-[(Z)-(hydroxyamino)(imino)methyl]-1H-indol-3-yl}propanoate (D107) (413 mg) in THF (5 mL) was added and the reaction mixture was stirred at RT for 2 hours. TBAF (1.1 g) was then added. The reaction vessel was sealed and heated in Biotage Initiator using initial normal to 120° C. for 2 hours. After cooling, the reaction was quenched with water, and extracted with EtOAc for 3 times. The combined organic solution was washed with brine, and dried over anhydrous sodium sulfate. The dried solution was concentrated. The residue was purified by column chromatography (15% EtOAc in hexane) to afford ethyl 3-[6-(5-{5-fluoro-6-[(1-methylethyl)oxy]-3-pyridinyl}-1,2,4-oxadiazol-3-yl)-1H-indol-3-yl]propanoate (D110) (60 mg) as a pale yellow solid. MS (ES): C23H23FN4O4 requires 438; found 439.2 (M+H+).

후처리

  1. stirringthe reaction mixture was stirred at RT for 2 hours
  2. customThe reaction vessel was sealed
  3. temperatureheated in Biotage Initiator
  4. customnormal to 120° C.
  5. customfor 2 hours
  6. temperatureAfter cooling
  7. customthe reaction was quenched with water
  8. extractionextracted with EtOAc for 3 times
  9. washThe combined organic solution was washed with brine
  10. dry with materialdried over anhydrous sodium sulfate
  11. concentrationThe dried solution was concentrated
  12. customThe residue was purified by column chromatography (15% EtOAc in hexane)

출처 및 근거

ORD 기록
ord-4d9c518f29fe4c8ca2f43861661e3273
출처 데이터셋
uspto-grants-2012_07
특허 번호
US08217028B2

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