2-Fluoropyridine → 14-Tert-butoxycarbonylamino-2,15-dioxo-18-(pyridin-2-yloxy)-3,16-diaza-tricyclo[14.3.0.04,6]nonadec-7-ene-4-carboxylic acid

HRID 17821

反応式

HRID 17821 の反応式
[C:1]([O:5][C:6]([NH:8][CH:9]1[C:27](=[O:28])[N:26]2[CH:22]([CH2:23][CH:24]([OH:29])[CH2:25]2)[C:21](=[O:30])[NH:20][C:19]2([C:31]([OH:33])=[O:32])[CH:17]([CH2:18]2)[CH:16]=[CH:15][CH2:14][CH2:13][CH2:12][CH2:11][CH2:10]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].CC(C)([O-])C.[K+].F[C:41]1[CH:46]=[CH:45][CH:44]=[CH:43][N:42]=1>CS(C)=O>[C:1]([O:5][C:6]([NH:8][CH:9]1[C:27](=[O:28])[N:26]2[CH:22]([CH2:23][CH:24]([O:29][C:41]3[CH:46]=[CH:45][CH:44]=[CH:43][N:42]=3)[CH2:25]2)[C:21](=[O:30])[NH:20][C:19]2([C:31]([OH:33])=[O:32])[CH:17]([CH2:18]2)[CH:16]=[CH:15][CH2:14][CH2:13][CH2:12][CH2:11][CH2:10]1)=[O:7])([CH3:4])([CH3:2])[CH3:3]

参加物

5

反応物 3

HCID 97462-FluoropyridineHCID 23665647Potassium tert-butoxideHCID 6849674114-Tert-butoxycarbonylamino-18-hydroxy-2,15-dioxo-3,16-diaza-tricyclo[14.3.0.04,6]nonadec-7-ene-4-carboxylic acid

生成物 1

HCID 6849413814-Tert-butoxycarbonylamino-2,15-dioxo-18-(pyridin-2-yloxy)-3,16-diaza-tricyclo[14.3.0.04,6]nonadec-7-ene-4-carboxylic acid収率 57.6%

試薬・触媒・溶媒 1

HCID 679Dimethyl Sulfoxide溶媒

実験手順

To a mixture of (14-tert-butoxycarbonylamino-18-hydroxy-2,15-dioxo-3,16-diaza-tricyclo[14.3.0.04,6]nonadec-7-ene-4-carboxylic acid (150 mg, 0.32 mmol; prepared in Ex. 25, step 4) in 3 mL of DMSO was added potassium t-butoxide (91 mg, 0.81 mmol). The mixture was stirred at rt for 5 min, and then 2-fluoro-pyridine (39 mg, 0.40 mmoL) was added and the mixture was stirred at rt overnight. The reaction was quenched by adding 10 mL of water, and then the pH was adjusted to 4 using 0.1 N HCL. It was then extracted with ethyl acetate, dried, concentrated in vacuo to obtain a yellow oil. This crude product was purified by flash chromatography on silica gel eluting with 10% methanol in ethyl acetate to isolate 100 mg (56%) of 14-tert-butoxycarbonylamino-2,15-dioxo-18-(pyridin-2-yloxy)-3,16-diaza-tricyclo[14.3.0.04,6]nonadec-7-ene-4-carboxylic acid as a white solid. 1H NMR (500 MHz, MeOD) δ 1.24-1.53 (m, 6H), 1.36 (s, 9H), 1.55-1.68 (m, 3H), 1.73-1.90 (m, 1H), 2.02-2.11 (m, 1H), 2.16 (q, J=8.65 Hz, 1H), 2.35-2.45 (m, 1 H), 2.51 (dd, J=7.63, 2.75 Hz, 2H), 4.06-4.14 (m, 1H), 4.27 (d, J=11.29 Hz, 1 H), 4.33 (s, 1H), 4.58 (t, J=7.93 Hz, 1H), 5.46-5.57 (m, 2H), 5.70 (s, 1H), 6.79 (d, J=8.54 Hz, 1H), 6.93-7.02 (m, 1H), 7.68 (t, J=7.63 Hz, 1H), 8.16 (d, J=4.85 Hz, 1 H). LC-MS (YMC Xterra ODS S7 micrometer column: 3.0×50 mm length. Gradient: 100% Solvent A/0% Solvent B to 0% Solvent A/100% Solvent B. Gradient time: 4 min. Hold time: 1 min. Flow rate: 4 mL/min. Detector Wavelength: 220 nm. Solvent A: 10% MeOH/90% H2O/0.1% TFA. Solvent B: 10% H2O/90% MeOH/0.1% TFA.)(Retention time: 2.90 min), MS m/z 543 (M++1).

後処理

  1. stirringthe mixture was stirred at rt overnight
  2. customThe reaction was quenched
  3. additionby adding 10 mL of water
  4. extractionIt was then extracted with ethyl acetate
  5. customdried
  6. concentrationconcentrated in vacuo
  7. customto obtain a yellow oil
  8. customThis crude product was purified by flash chromatography on silica gel eluting with 10% methanol in ethyl acetate

出典と根拠

ORDレコード
ord-6bb8f56630384248afe111171b4df2b1
出典データセット
uspto-grants-2010_06
特許番号
US07741281B2

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