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Trifluoroacetic acid → (S)-7-((3-methyloxetan-3-yl)ethynyl)-3-(6-methylpyridin-3-yl)-5'H-spiro[chromeno[2,3-b]pyridine-5,4'-thiazol]-2'-amine

HRID 335943
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HRID 335943 반응식
[CH3:1][C:2]1([C:6]#[C:7][C:8]2[CH:9]=[C:10]3[C@@:21]4([CH2:25][S:24][C:23]([NH:26]C(=O)OC(C)(C)C)=[N:22]4)[C:20]4[C:15](=[N:16][CH:17]=[C:18]([C:34]5[CH:35]=[N:36][C:37]([CH3:40])=[CH:38][CH:39]=5)[CH:19]=4)[O:14][C:11]3=[CH:12][CH:13]=2)[CH2:5][O:4][CH2:3]1.C(O)(C(F)(F)F)=O>C(Cl)Cl>[CH3:1][C:2]1([C:6]#[C:7][C:8]2[CH:9]=[C:10]3[C@@:21]4([CH2:25][S:24][C:23]([NH2:26])=[N:22]4)[C:20]4[C:15](=[N:16][CH:17]=[C:18]([C:34]5[CH:35]=[N:36][C:37]([CH3:40])=[CH:38][CH:39]=5)[CH:19]=4)[O:14][C:11]3=[CH:12][CH:13]=2)[CH2:3][O:4][CH2:5]1
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참가 물질

4

반응물 2

HCID 6422Trifluoroacetic acidHCID 67436896(S)-tert-butyl 7-((3-methyloxetan-3-yl)ethynyl)-3-(6-methylpyridin-3-yl)-5'H-spiro[chromeno[2,3-b]pyridine-5,4'-thiazole]-2'-ylcarbamate

생성물 1

HCID 58466250(S)-7-((3-methyloxetan-3-yl)ethynyl)-3-(6-methylpyridin-3-yl)-5'H-spiro[chromeno[2,3-b]pyridine-5,4'-thiazol]-2'-amine수율 75.5%

시약·촉매·용매 1

HCID 6344Dichloromethane용매2회

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온도
50 °C

실험 절차

(S)-Tert-butyl 7-((3-methyloxetan-3-yl)ethynyl)-3-(6-methylpyridin-3-yl)-5′H-spiro[chromeno[2,3-b]pyridine-5,4′-thiazole]-2′-ylcarbamate (0.027 g, 0.049 mmol) was taken up in 1.5 mL of DCM and TFA (0.057 mL, 0.735 mmol) was added. The reaction was heated to 50° C. and stirred for 2 h. The reaction was diluted with DCM and washed with saturated sodium bicarbonate solution. The aqueous layer was extracted with DCM, and the combined organic layers were dried with sodium sulfate, filtered, and concentrated to afford (S)-7-((3-methyloxetan-3-yl)ethynyl)-3-(6-methylpyridin-3-yl)-5′H-spiro[chromeno[2,3-b]pyridine-5,4′-thiazol]-2′-amine (0.017 g, 0.037 mmol, 37.6% yield) as a light yellow solid.

후처리

  1. washwashed with saturated sodium bicarbonate solution
  2. extractionThe aqueous layer was extracted with DCM
  3. dry with materialthe combined organic layers were dried with sodium sulfate
  4. filtrationfiltered
  5. concentrationconcentrated

출처 및 근거

ORD 기록
ord-1e695ad0fa514c5aa4f45859014d2fad
출처 데이터셋
uspto-grants-2014_11
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08883782B2

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