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Lithium Hydroxide → 2-Tert-butoxy-2-[6-methyl-1-[(4-methylsulfonylphenyl)methyl]-7-oxo-4-(p-tolyl)pyrrolo[2,3-c]pyridin-5-yl]acetic acid

HRID 1473215
ノート
印刷プレビュー

反応式

HRID 1473215 の反応式
[C:1]([O:5][CH:6]([C:11]1[N:16]([CH3:17])[C:15](=[O:18])[C:14]2[N:19]([CH2:22][C:23]3[CH:28]=[CH:27][C:26]([S:29]([CH3:32])(=[O:31])=[O:30])=[CH:25][CH:24]=3)[CH:20]=[CH:21][C:13]=2[C:12]=1[C:33]1[CH:38]=[CH:37][C:36]([CH3:39])=[CH:35][CH:34]=1)[C:7]([O:9]C)=[O:8])([CH3:4])([CH3:3])[CH3:2].[Li+].[OH-]>CO.O1CCCC1>[C:1]([O:5][CH:6]([C:11]1[N:16]([CH3:17])[C:15](=[O:18])[C:14]2[N:19]([CH2:22][C:23]3[CH:28]=[CH:27][C:26]([S:29]([CH3:32])(=[O:31])=[O:30])=[CH:25][CH:24]=3)[CH:20]=[CH:21][C:13]=2[C:12]=1[C:33]1[CH:34]=[CH:35][C:36]([CH3:39])=[CH:37][CH:38]=1)[C:7]([OH:9])=[O:8])([CH3:4])([CH3:3])[CH3:2]
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 2

HCID 3939Lithium HydroxideHCID 89463522methyl 2-(tert-butoxy)-2-(6-methyl-1-(4-(methylsulfonyl)benzyl)-7-oxo-4-(p-tolyl)-6,7-dihydro-1H-pyrrolo[2,3-c]pyridin-5-yl)acetate

生成物 1

HCID 715367792-Tert-butoxy-2-[6-methyl-1-[(4-methylsulfonylphenyl)methyl]-7-oxo-4-(p-tolyl)pyrrolo[2,3-c]pyridin-5-yl]acetic acid

試薬・触媒・溶媒 2

HCID 887Methanol溶媒
HCID 8028
Tetrahydrofuran
溶媒

反応条件

温度
60 °C

実験手順

A suspension of methyl 2-(tert-butoxy)-2-(6-methyl-7-oxo-4-(p-tolyl)-6,7-dihydro-1H-pyrrolo[2,3-c]pyridin-5-yl)acetate (17 mg, 0.044 mmol) in Acetonitrile (0.4 mL) was treated with Cs2CO3 (57.9 mg, 0.178 mmol), 4-methylsulfonylbenzyl bromide (44.3 mg, 0.089 mmol), and stirred at 70° C. for 1.5 hours. The reaction was cooled to rt, diluted with water and 1N HCl, extracted with EtOAc, washed with Brine, dried with Na2SO4, filtered, and concentrated. Purification with column chromatography (0-100% EtOAc/Hexane) gave methyl 2-(tert-butoxy)-2-(6-methyl-1-(4-(methylsulfonyl)benzyl)-7-oxo-4-(p-tolyl)-6,7-dihydro-1H-pyrrolo[2,3-c]pyridin-5-yl)acetate (22 mg, 0.040 mmol, 90% yield) as yellow oil. The ester intermediate was dissolved in Methanol (0.5 mL) and Tetrahydrofuran (THF) (0.5 mL), treated with 2M LiOH (0.120 mL, 0.24 mmol), and stirred at 60° C. for 2 hours. The reaction was concentrated and purified with reverse phase HPLC (20-100% MeCN/H2O-0.1% TFA) to give title compound (9.3 mg, 0.017 mmol, 37.6 yield) as off white solid. 1H NMR (400 MHz, CHLOROFORM-d) ppm 1.00 (s, 9H), 2.44 (s, 3H), 3.02 (s, 3H), 3.64 (s, 3H), 5.47 (s, 1H), 5.81 (d, J=15.7 Hz, 1H), 6.02 (d, J=15.6 Hz, 1H), 6.10 (d, J=2.8 Hz, 1H), 7.05 (d, J=2.9 Hz, 1H), 7.29 (d, J=8.1 Hz, 2H), 7.32-7.43 (m, 3H), 7.47-7.58 (m, 1H), 7.89 (d, J=8.4 Hz, 2H). LCMS (m/z) ES+=537 (M+1).

後処理

  1. concentrationThe reaction was concentrated
  2. custompurified with reverse phase HPLC (20-100% MeCN/H2O-0.1% TFA)

出典と根拠

ORDレコード
ord-b69c9dc99fde484cad24ebfcb477fb5c
出典データセット
uspto-grants-2015_04
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US09012642B2

反応ノート

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