4,4-Dimethylpiperidine → 5-(3'-Amino-4,4-dimethyl-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-6'-yl)-1,3-dimethyl-tetrahydro-pyrimidin-2-one

HRID 448013

反応式

HRID 448013 の反応式
C(OC(=O)[NH:7][C:8]1[C:9](Br)=[N:10][C:11]([CH:14]2[CH2:19][N:18]([CH3:20])[C:17](=[O:21])[N:16]([CH3:22])[CH2:15]2)=[CH:12][CH:13]=1)(C)(C)C.[CH3:25][C:26]1([CH3:32])[CH2:31][CH2:30][NH:29][CH2:28][CH2:27]1>>[NH2:7][C:8]1[C:9]([N:29]2[CH2:30][CH2:31][C:26]([CH3:32])([CH3:25])[CH2:27][CH2:28]2)=[N:10][C:11]([CH:14]2[CH2:15][N:16]([CH3:22])[C:17](=[O:21])[N:18]([CH3:20])[CH2:19]2)=[CH:12][CH:13]=1

参加物

3

反応物 2

HCID 1381004,4-DimethylpiperidineHCID 59771238[2-Bromo-6-(1,3-dimethyl-2-oxo-hexahydro-pyrimidin-5-yl)-pyridin-3-yl]-carbamic acid tert-butyl ester

生成物 1

HCID 597712375-(3'-Amino-4,4-dimethyl-3,4,5,6-tetrahydro-2H-[1,2']bipyridinyl-6'-yl)-1,3-dimethyl-tetrahydro-pyrimidin-2-one

実験手順

The title compound is prepared from [2-bromo-6-(1,3-dimethyl-2-oxo-hexahydro-pyrimidin-5-yl)-pyridin-3-yl]-carbamic acid tert-butyl ester (as prepared in the previous step) and 4,4-dimethylpiperidine (US 2003236247) following the literature procedure of Buchwald (Org. Lett., 4, 2885-8 (2002)). The residue obtained is purified by silica gel chromatography with an appropriate solvent mixture. After isolation, removal of the BOC protecting group from the resulting intermediate is carried out by stirring at RT in TFA-DCM (1:2), monitoring by TLC for completion, and then concentration in vacuo.

後処理

  1. customThe residue obtained
  2. customis purified by silica gel chromatography with an appropriate solvent mixture
  3. customAfter isolation, removal of the BOC protecting group from the resulting intermediate
  4. concentrationconcentration in vacuo

出典と根拠

ORDレコード
ord-300afc46248e4573b5d3cb99e9af9df1
出典データセット
uspto-grants-2013_07
特許番号
US08481564B2

関連ノート

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