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Triethylamine → (2-Benzhydryl-5-oxa-2,8-diazaspiro[3.5]nonan-8-yl)(5-methylthiophen-2-yl)methanone

HRID 1689272
ノート
印刷プレビュー

反応式

HRID 1689272 の反応式
CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.[CH3:25][C:26]1[S:30][C:29]([C:31]([OH:33])=O)=[CH:28][CH:27]=1.[CH:34]([N:47]1[CH2:50][C:49]2([CH2:55][NH:54][CH2:53][CH2:52][O:51]2)[CH2:48]1)([C:41]1[CH:46]=[CH:45][CH:44]=[CH:43][CH:42]=1)[C:35]1[CH:40]=[CH:39][CH:38]=[CH:37][CH:36]=1.C(N(CC)CC)C>CN(C=O)C>[CH:34]([N:47]1[CH2:50][C:49]2([CH2:55][N:54]([C:31]([C:29]3[S:30][C:26]([CH3:25])=[CH:27][CH:28]=3)=[O:33])[CH2:53][CH2:52][O:51]2)[CH2:48]1)([C:35]1[CH:36]=[CH:37][CH:38]=[CH:39][CH:40]=1)[C:41]1[CH:42]=[CH:43][CH:44]=[CH:45][CH:46]=1
参加物実験手順後処理出典と根拠反応ノート

参加物

6

反応物 4

HCID 8471TriethylamineHCID 747135-Methylthiophene-2-carboxylic acidHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 579892372-(Diphenylmethyl)-5-oxa-2,8-diazaspiro[3.5]nonane

生成物 1

HCID 57989184(2-Benzhydryl-5-oxa-2,8-diazaspiro[3.5]nonan-8-yl)(5-methylthiophen-2-yl)methanone

試薬・触媒・溶媒 1

HCID 6228Dimethylformamide溶媒

実験手順

HATU (2.267 g) was added in one portion to a solution of 5-methylthiophene-2-carboxylic acid (0.652 g) and 2-benzhydryl-5-oxa-2,8-diazaspiro[3.5]nonane (example 33, step f) (1.35 g) and triethylamine (1.917 mL) in DMF (20 mL) at 0° C. The cooling bath was removed and the mixture stirred at room temperature for 2 hours. The mixture was partitioned between ethyl acetate and brine, the organic layer was washed twice with brine before being dried over sodium sulphate, filtered and the solvent removed under reduced pressure. The crude product was purified by flash silica chromatography, elution gradient 0.4 to 5% methanol in dichloromethane. Pure fractions were evaporated to dryness to afford the subtitled compound. Yield 1.5 g.

後処理

  1. customThe cooling bath was removed
  2. customThe mixture was partitioned between ethyl acetate and brine
  3. washthe organic layer was washed twice with brine
  4. dry with materialbefore being dried over sodium sulphate
  5. filtrationfiltered
  6. customthe solvent removed under reduced pressure
  7. customThe crude product was purified by flash silica chromatography, elution gradient 0.4 to 5% methanol in dichloromethane
  8. customPure fractions were evaporated to dryness

出典と根拠

ORDレコード
ord-72042aee474e4b80868e70947ede23b5
出典データセット
uspto-grants-2012_04
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US08148373B2

反応ノート

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