Water → N-((5-Methyl-1,8-naphthyridin-2(1H)-on-3-yl)acetyl)-N-(2-(tert-butyloxycarbonyl)aminoethyl)glycine

HRID 987904노트

반응식

HRID 987904 반응식
[CH3:1][C:2]1[CH:11]=[CH:10][N:9]=[C:8]2[C:3]=1[CH:4]=[C:5]([CH2:13][C:14]([N:16]([CH2:22][CH2:23][NH:24][C:25]([O:27][C:28]([CH3:31])([CH3:30])[CH3:29])=[O:26])[CH2:17][C:18]([O:20]C)=[O:19])=[O:15])[C:6](=[O:12])[NH:7]2.[Li+].[OH-].O>C1COCC1>[CH3:1][C:2]1[CH:11]=[CH:10][N:9]=[C:8]2[C:3]=1[CH:4]=[C:5]([CH2:13][C:14]([N:16]([CH2:22][CH2:23][NH:24][C:25]([O:27][C:28]([CH3:31])([CH3:30])[CH3:29])=[O:26])[CH2:17][C:18]([OH:20])=[O:19])=[O:15])[C:6](=[O:12])[NH:7]2

참가 물질

5

반응물 3

HCID 962WaterHCID 3939Lithium HydroxideHCID 22987119Methyl N-((5-Methyl-1,8-naphthyridin-2(1H)-on-3-yl)acetyl)-N-(2-(tert-butyloxycarbonyl)aminoethyl)glycinate

생성물 1

HCID 22987121N-((5-Methyl-1,8-naphthyridin-2(1H)-on-3-yl)acetyl)-N-(2-(tert-butyloxycarbonyl)aminoethyl)glycine수율 53%

시약·촉매·용매 1

HCID 8028Tetrahydrofuran용매

실험 절차

To a solution of methyl N-((5-methyl-1,8-naphthyridin-2(1H)-on-3-yl)acetyl)-N-(2-(tert-butyloxycarbonyl)aminoethyl)glycinate (0.72 g, 1.70 mmol) in THF (10 mL) was added LiOH (aqueous, 2M) (2.0 mL). The resulting solution was stirred at rt. for 45 min. then additional water was added, the THF was evaporated in vacuo and the pH of the aqueous solution was adjusted to 3.0. The resulting precipitate was washed with water (2×10 mL), collected by centrifugation and dried in vacuo to yield the desired product (366 mg, 53%) as a white powder (mp 133-36° C.). 1H NMR (DMSO-d6; this compound exist as two rotamers; chemical shifts for the minor rotamer is given in brackets): δ 12.12 (s br, 1H), 8.33 (d, J=4.9 Hz, 1H), 8.00 (s, 1H), 7.09 (d, J=4.9 Hz, 1H), 6.92 (6.70) (m, 1H), 3.99 (4.26) (s, 2H), 3.62 (s, 2H), 3.45 (m, 2H+H2O), 3.17 (m, 2H), 2.53 (2.52) (s, 3H), 1.36 (1.34) (s, 9H) 13C NMR (DMSO-d6): δ 171.07 (171.31), 170.23 (170.54), 162.36, 155.80, 149.53, 149.27, 145.30, 132.67 (133.55), 129.35 (129.20), 119.92, 113.44, 78.01, 48.13, 47.33, 38.60 (38.36), 34.07, 28.27, 17.76. FAB− HRMS (m/z): 417.1798, calc. C20H26N4O6−H 417.1774.

후처리

  1. customthe THF was evaporated in vacuo
  2. washThe resulting precipitate was washed with water (2×10 mL)
  3. customcollected by centrifugation
  4. customdried in vacuo

출처 및 근거

ORD 기록
ord-52650747ef7e4267ab3e1b2ea97c1c85
출처 데이터셋
uspto-grants-2003_10
특허 번호
US06632919B1

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