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Triethylamine → n-{4-Fluoro-2-(methylcarbamoyl)benzyl}-3-benzyloxy-9-methyl-4-oxo-4,6,7,9-tetrahydropyrimido[2,1-c][1,4]oxazine-2-carboxamide

HRID 1726608
ノート
印刷プレビュー

反応式

HRID 1726608 の反応式
[CH2:1]([O:8][C:9]1[C:18](=[O:19])[N:17]2[C:12]([CH:13]([CH3:20])[O:14][CH2:15][CH2:16]2)=[N:11][C:10]=1[C:21]([OH:23])=O)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.FC(F)(F)C(O)=O.[NH2:31][CH2:32][C:33]1[CH:42]=[CH:41][C:40]([F:43])=[CH:39][C:34]=1[C:35]([NH:37][CH3:38])=[O:36].C(N(CC)CC)C.F[P-](F)(F)(F)(F)F.N1(O[P+](N2CCCC2)(N2CCCC2)N2CCCC2)C2C=CC=CC=2N=N1>ClCCl.C(OCC)(=O)C>[F:43][C:40]1[CH:41]=[CH:42][C:33]([CH2:32][NH:31][C:21]([C:10]2[N:11]=[C:12]3[N:17]([C:18](=[O:19])[C:9]=2[O:8][CH2:1][C:2]2[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=2)[CH2:16][CH2:15][O:14][CH:13]3[CH3:20])=[O:23])=[C:34]([C:35](=[O:36])[NH:37][CH3:38])[CH:39]=1
参加物実験手順後処理出典と根拠反応ノート

参加物

7

反応物 4

HCID 8471TriethylamineHCID 2724699PyBOPHCID 210698142-(Aminomethyl)-5-fluoro-n-methylbenzamide trifluoroacetate saltHCID 210698603-Benzyloxy-9-methyl-4-oxo-4,6,7,9-tetrahydropyrimido[2,1-c][1,4]oxazine-2-carboxylic acid

生成物 1

HCID 21070023n-{4-Fluoro-2-(methylcarbamoyl)benzyl}-3-benzyloxy-9-methyl-4-oxo-4,6,7,9-tetrahydropyrimido[2,1-c][1,4]oxazine-2-carboxamide
収率 100.2%

試薬・触媒・溶媒 2

HCID 6344Dichloromethane溶媒HCID 8857Ethyl Acetate溶媒

実験手順

A mixture of intermediate 27, 3-benzyloxy-9-methyl-4-oxo-4,6,7,9-tetrahydropyrimido[2,1-c][1,4]oxazine-2-carboxylic acid (0.172 g, 0.54 mmol) and intermediate 39, 2-(aminomethyl)-5-fluoro-N-methylbenzamide trifluoroacetate salt (0.177 g, 0.60 mmol) in dichloromethane (10 ml) was treated at 22° C. with triethylamine (0.17 ml, 1.22 mmol) followed by benzotriazole-1-yloxy-tris-pyrrolidino-phosphonium hexafluorophosphate (PYBOP) (0.340 g, 0.65 mmol). After 3 h, the reaction mixture was diluted with ethyl acetate, washed with saturated sodium bicarbonate and brine then dried over anhydrous magnesium sulfate. Evaporation of the solvent followed by chromatography of the residue on silica gel (elution gradient ethyl acetate 50-100% in toluene) gave 0.260 g (100% yield) of the title amide as a white solid. 1HNMR 400 MHz (CDCl3) δ (ppm): 1.70 (3H, d, J=6.6 Hz, CH3), 3.01 (3H, d, J=4.7 Hz, NCH3), 3.89 (2H, m, CH2), 4.14 (1H, m, CH), 4.29 (1H, m, CH), 4.53 (2H, d, J=6.7 Hz, NCH2), 4.69 (1H, q, J=6.6 Hz, OCH), 5.35 (2H, s, OCH2), 6.69 (1H, broad q, NH), 7.09 (1H, m, aromatic), 7.16 (1H, m, aromatic), 7.32 (3H, m, aromatics), 7.42 (1H, m, aromatic), 7.47 (2H, m, aromatics), 8.61 (1H, broad t, NH). HRMS (ESI+) calculated for C25H26FN4O5 [M+H+]: 481.1887: found: 481.1884.

後処理

  1. washwashed with saturated sodium bicarbonate and brine
  2. dry with materialthen dried over anhydrous magnesium sulfate
  3. customEvaporation of the solvent

出典と根拠

ORDレコード
ord-ba0e19fef9a94ef980ba860e9dd97775
出典データセット
uspto-grants-2009_02
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US07491819B1

反応ノート

読み込み中…

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