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Potassium Carbonate → (2S)-methyl 2-(7-(4-allyl-5-chloro-3,4-dihydro-2H-benzo[b][1,4]oxazin-6-yl)-5-methyl-2-(2'-(pent-4-en-1-yloxy)-[1,1'-biphenyl]-3-yl)pyrazolo[1,5-a]pyrimidin-6-yl)-2-(tert-butoxy)acetate

HRID 1400700
ノート
印刷プレビュー

反応式

HRID 1400700 の反応式
[CH2:1]([N:4]1[CH2:9][CH2:8][O:7][C:6]2[CH:10]=[CH:11][C:12]([C:15]3[N:20]4[N:21]=[C:22]([C:24]5[CH:25]=[C:26]([C:30]6[CH:35]=[CH:34][CH:33]=[CH:32][C:31]=6[OH:36])[CH:27]=[CH:28][CH:29]=5)[CH:23]=[C:19]4[N:18]=[C:17]([CH3:37])[C:16]=3[C@H:38]([O:43][C:44]([CH3:47])([CH3:46])[CH3:45])[C:39]([O:41][CH3:42])=[O:40])=[C:13]([Cl:14])[C:5]1=2)[CH:2]=[CH2:3].C([O-])([O-])=O.[K+].[K+].Br[CH2:55][CH2:56][CH2:57][CH:58]=[CH2:59]>CC(C)=O>[CH2:1]([N:4]1[CH2:9][CH2:8][O:7][C:6]2[CH:10]=[CH:11][C:12]([C:15]3[N:20]4[N:21]=[C:22]([C:24]5[CH:25]=[C:26]([C:30]6[CH:35]=[CH:34][CH:33]=[CH:32][C:31]=6[O:36][CH2:59][CH2:58][CH2:57][CH:56]=[CH2:55])[CH:27]=[CH:28][CH:29]=5)[CH:23]=[C:19]4[N:18]=[C:17]([CH3:37])[C:16]=3[C@H:38]([O:43][C:44]([CH3:47])([CH3:46])[CH3:45])[C:39]([O:41][CH3:42])=[O:40])=[C:13]([Cl:14])[C:5]1=2)[CH:2]=[CH2:3]
参加物反応条件実験手順後処理出典と根拠反応ノート

参加物

5

反応物 3

HCID 11430Potassium CarbonateHCID 707041-Pentene, 5-bromo-HCID 86710750(2S)-methyl 2-(7-(4-allyl-5-chloro-3,4-dihydro-2H-benzo[b][1,4]oxazin-6-yl)-2-(2'-hydroxy-[1,1'-biphenyl]-3-yl)-5-methylpyrazolo[1,5-a]pyrimidin-6-yl)-2-(tert-butoxy)acetate

生成物 1

HCID 89971579(2S)-methyl 2-(7-(4-allyl-5-chloro-3,4-dihydro-2H-benzo[b][1,4]oxazin-6-yl)-5-methyl-2-(2'-(pent-4-en-1-yloxy)-[1,1'-biphenyl]-3-yl)pyrazolo[1,5-a]pyrimidin-6-yl)-2-(tert-butoxy)acetate
収率 45.4%

試薬・触媒・溶媒 1

HCID 180Acetone溶媒

反応条件

温度
70 °C

実験手順

A solution of (2S)-methyl 2-(7-(4-allyl-5-chloro-3,4-dihydro-2H-benzo[b][1,4]oxazin-6-yl)-2-(2′-hydroxy-[1,1′-biphenyl]-3-yl)-5-methylpyrazolo[1,5-a]pyrimidin-6-yl)-2-(tert-butoxy)acetate (0.058 g, 0.089 mmol) and K2CO3 (0.042 g, 0.304 mmol) in dry acetone (5 mL) was treated with 5-bromopent-1-ene (0.026 g, 0.174 mmol), and the reaction was stirred with heating (70° C. oil bath) for 16 h. The reaction was cooled, then concentrated under reduced pressure. The residue was taken up in CH2Cl2 (5 mL) and washed with 1N HCl (5 mL), dried (Na2SO4), filtered, and concentrated under reduced pressure. The residue was purified by biotage column chromatography (5%-50% EtOAc in hexanes). Product fractions were pooled and concentrated under reduced pressure. The product, (2S)-methyl 2-(7-(4-allyl-5-chloro-3,4-dihydro-2H-benzo[b][1,4]oxazin-6-yl)-5-methyl-2-(2′-(pent-4-en-1-yloxy)-[1,1′-biphenyl]-3-yl)pyrazolo[1,5-a]pyrimidin-6-yl)-2-(tert-butoxy)acetate (0.031 g, 0.040 mmol, 45.4% yield) was isolated as a clear film. 1H NMR (400 MHz, CDCl3) δ 8.04-7.99 (m, 1H), 7.85-7.79 (m, 1H), 7.54-7.49 (m, 1H), 7.44-7.38 (m, 1H), 7.36 (dd, J=7.5, 1.8 Hz, 1H), 7.31 (td, J=7.8, 1.6 Hz, 1H), 7.03 (td, J=7.5, 0.9 Hz, 1H), 7.01-6.94 (m, 3H), 6.90 (s, 1H), 6.03 (ddt, J=16.9, 10.5, 6.0 Hz, 1H), 5.74 (ddt, J=17.0, 10.3, 6.7 Hz, 1H), 5.33 (dd, J=17.1, 1.5 Hz, 1H), 5.24 (d, J=10.0 Hz, 1H), 5.05 (s, 1H), 4.96-4.86 (m, 2H), 4.26 (t, J=4.4 Hz, 2H), 3.96 (t, J=6.4 Hz, 2H), 3.78-3.69 (m, 1H), 3.65 (s, 3H), 3.64-3.55 (m, 1H), 3.20 (q, J=4.2 Hz, 2H), 2.84 (s, 3H), 2.11 (q, J=6.9 Hz, 2H), 1.83-1.71 (m, 2H), 1.63 (s, 1H), 1.17 (s, 9H). LCMS (M+H)=721.5.

後処理

  1. temperatureThe reaction was cooled
  2. concentrationconcentrated under reduced pressure
  3. washwashed with 1N HCl (5 mL)
  4. dry with materialdried (Na2SO4)
  5. filtrationfiltered
  6. concentrationconcentrated under reduced pressure
  7. customThe residue was purified by biotage column chromatography (5%-50% EtOAc in hexanes)
  8. concentrationconcentrated under reduced pressure

出典と根拠

ORDレコード
ord-f58cb05bdf0649959420a2b52399fd23
出典データセット
uspto-grants-2014_12
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US08906929B2

反応ノート

読み込み中…

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