Methyl 4-hydroxy-3-methoxyphenylacetate → Methyl 2-(3-methoxy-4-(4-nitro-1-((2-(trimethylsilyl)ethoxy)methyl)-1H-indazol-5-yloxy)phenyl)acetate

HRID 2423310노트

반응식

HRID 2423310 반응식
[CH3:1][O:2][C:3](=[O:14])[CH2:4][C:5]1[CH:10]=[CH:9][C:8]([OH:11])=[C:7]([O:12][CH3:13])[CH:6]=1.[Na].Cl[C:17]1[C:18]([N+:34]([O-:36])=[O:35])=[C:19]2[C:23](=[CH:24][CH:25]=1)[N:22]([CH2:26][O:27][CH2:28][CH2:29][Si:30]([CH3:33])([CH3:32])[CH3:31])[N:21]=[CH:20]2>C1COCC1>[CH3:13][O:12][C:7]1[CH:6]=[C:5]([CH2:4][C:3]([O:2][CH3:1])=[O:14])[CH:10]=[CH:9][C:8]=1[O:11][C:17]1[C:18]([N+:34]([O-:36])=[O:35])=[C:19]2[C:23](=[CH:24][CH:25]=1)[N:22]([CH2:26][O:27][CH2:28][CH2:29][Si:30]([CH3:32])([CH3:33])[CH3:31])[N:21]=[CH:20]2

참가 물질

5

반응물 3

HCID 85214Methyl 4-hydroxy-3-methoxyphenylacetateHCID 5360545SodiumHCID 598648595-chloro-4-nitro-1-((2-(trimethylsilyl)ethoxy)methyl)-1H-indazole

생성물 1

HCID 59864798Methyl 2-(3-methoxy-4-(4-nitro-1-((2-(trimethylsilyl)ethoxy)methyl)-1H-indazol-5-yloxy)phenyl)acetate

시약·촉매·용매 1

HCID 8028Tetrahydrofuran용매3회

실험 절차

To methyl-3-methoxy-4-hydroxyphenylacetate (0.062 g, 0.32 mmol) in dry THF (5 mL) under nitrogen was added sodium hexamethyldisylazide (1M solution in THF) (312 μl, 0.31 mmol). After 10 min. stirring at room temperature 5-chloro-4-nitro-1-((2-(trimethylsilyl)ethoxy)methyl)-1H-indazole (93 mg, 0.28 mmol) in 5 mL of THF was added. The resulting mixture was stirred at reflux for 5 days. After that time the mixture was quenched with water and extracted with ethyl acetate (3×25 mL). The combined organic extracts were washed with brine, dried over magnesium sulfate and concentrated under reduced pressure. The desired product was isolated by chromatography (10% ethyl acetate/hexane). 1H NMR (400 MHz) (CDCl3) δ 8.40 (s, 1H); 7.70 (d, J=9.1 Hz, 1H); 7.05 (d, J=9.1 Hz, 1H); 6.95 (m, 2H), 6.84 (dd, J=1.5, 8.0 Hz, 1H); 5.75 (s, 2H); 3.82 (s, 3H), 3.62, s, 3H); 3.62 (s, 2H); 3.57 (t, J=8.0 Hz, 2H); 0.89 (t, J=8.0 Hz, 2H); 0.0 (s, 9H).

후처리

  1. additionwas added
  2. temperatureat reflux for 5 days
  3. customAfter that time the mixture was quenched with water
  4. extractionextracted with ethyl acetate (3×25 mL)
  5. washThe combined organic extracts were washed with brine
  6. dry with materialdried over magnesium sulfate
  7. concentrationconcentrated under reduced pressure

출처 및 근거

ORD 기록
ord-353d28c8e0194bc6a3ca81fd000ec45a
출처 데이터셋
uspto-grants-2011_06
특허 번호
US07960567B2

반응 노트

불러오는 중…