Lithium Hexamethyldisilazide → 9-Benzenesulfonyl-3-chloro-5-hydroxy-9H-diprido[2,3-b;4',3'-d]pyrrole-6-carbonitrile

HRID 60232노트

반응식

HRID 60232 반응식
C[Si]([N-][Si](C)(C)C)(C)C.[Li+].C[O:12][C:13]([C:15]1[C:23]2[C:18](=[N:19][CH:20]=[C:21]([Cl:24])[CH:22]=2)[N:17]([S:25]([C:28]2[CH:33]=[CH:32][CH:31]=[CH:30][CH:29]=2)(=[O:27])=[O:26])[C:16]=1[CH2:34][N:35]([CH2:46][C:47]#[N:48])S(C1C=CC(C)=CC=1)(=O)=O)=O>C1COCC1>[C:28]1([S:25]([N:17]2[C:16]3[CH:34]=[N:35][C:46]([C:47]#[N:48])=[C:13]([OH:12])[C:15]=3[C:23]3[CH:22]=[C:21]([Cl:24])[CH:20]=[N:19][C:18]2=3)(=[O:27])=[O:26])[CH:29]=[CH:30][CH:31]=[CH:32][CH:33]=1

참가 물질

4

반응물 2

HCID 2733832Lithium HexamethyldisilazideHCID 583650861-Benzenesulfonyl-5-chloro-2-{[cyanomethyl-(toluene-4-sulfonyl)amino]-methyl}-1H-pyrrolo[2,3-b]pyridine-3-carboxylic acid methyl ester

생성물 1

HCID 583649529-Benzenesulfonyl-3-chloro-5-hydroxy-9H-diprido[2,3-b;4',3'-d]pyrrole-6-carbonitrile수율 27.7%

시약·촉매·용매 1

HCID 8028Tetrahydrofuran용매2회

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온도
-10 °C

실험 절차

Lithium bis(trimethylsilyl)amide (220 mL of a 1N solution in THF, 220 mmol) was added dropwise to a cooled (−78° C.) suspension of 1-benzenesulfonyl-5-chloro-2-{[cyanomethyl-(toluene-4-sulfonyl)amino]methyl}-1H-pyrrolo[2,3-b]pyridine-3-carboxylic acid methyl ester (39.6 g, 69.1 mmol) in dry THF (350 mL). The reaction mixture was allowed to slowly warm to −10° C. then slowly quenched into cold 1M hydrochloric acid. The layers were separated and the aqueous layer further extracted with THF. The combined organic layer was washed with brine, dried (Na2SO4), filtered and evaporated. The resultant residue was triturated with methanol then acetone and air dried to afford the title compound as a tan solid (7.37 g, 27%). LCMS (Method B): RT=5.11 min, M+H+=385/387. 1H NMR (400 MHz, DMSO-d6): 9.23 (s, 1H), 8.76 (d, J=2.4 Hz, 1H), 8.69 (d, J=2.4 Hz, 1H), 8.19-8.19 (m, 2H), 7.75-7.75 (m, 1H), 7.62-7.61 (m, 2H).

후처리

  1. temperaturea cooled
  2. customthen slowly quenched into cold 1M hydrochloric acid
  3. customThe layers were separated
  4. extractionthe aqueous layer further extracted with THF
  5. washThe combined organic layer was washed with brine
  6. dry with materialdried (Na2SO4)
  7. filtrationfiltered
  8. customevaporated
  9. customThe resultant residue was triturated with methanol
  10. dry with materialacetone and air dried

출처 및 근거

ORD 기록
ord-b75397902a0d4ec9bd439520203c8663
출처 데이터셋
uspto-grants-2016_09
특허 번호
US09440976B2

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