Triethylamine → tert-Butyl 4-(benzo[d]thiazole-2-carbonyl)-1-oxa-4,9-diazaspiro[5.5]undecane-9-carboxylate

HRID 471249

反応式

HRID 471249 の反応式
F[P-](F)(F)(F)(F)F.N1(OC(N(C)C)=[N+](C)C)C2N=CC=CC=2N=N1.Cl.[O:26]1[C:31]2([CH2:36][CH2:35][N:34]([C:37]([O:39][C:40]([CH3:43])([CH3:42])[CH3:41])=[O:38])[CH2:33][CH2:32]2)[CH2:30][NH:29][CH2:28][CH2:27]1.[S:44]1[C:48]2[CH:49]=[CH:50][CH:51]=[CH:52][C:47]=2[N:46]=[C:45]1[C:53](O)=[O:54].C(N(CC)CC)C>CN(C=O)C>[S:44]1[C:48]2[CH:49]=[CH:50][CH:51]=[CH:52][C:47]=2[N:46]=[C:45]1[C:53]([N:29]1[CH2:30][C:31]2([CH2:36][CH2:35][N:34]([C:37]([O:39][C:40]([CH3:43])([CH3:42])[CH3:41])=[O:38])[CH2:33][CH2:32]2)[O:26][CH2:27][CH2:28]1)=[O:54]

参加物

6

実験手順

O-(7-Azabenzotriazol-1-yl)-N,N,N′,N′-tetramethyluronium hexafluorophosphate (1.45 g) was added to a solution of tert-butyl 1-oxa-4,9-diazaspiro[5.5]undecane-9-carboxylate hydrochloride (WuXi PharmaTech) (0.8 g), 1,3-benzothiazol-2-carboxylic acid (0.588 g) and triethylamine (1.51 mL) in DMF (15 mL) and the resulting mixture stirred for 16 h. The volume of DMF was reduced in vacuo and the reaction mixture was partitioned between water (30 mL) and ethyl acetate (30 mL). The organic layer was washed with water (30 mL) and brine (30 mL), dried over magnesium sulphate, filtered and evaporated in vacuo. Purification was by silica gel chromatography eluting with 0-10% methanol in dichloromethane to give the subtitled compound as a yellow oil. Yield 0.83 g.

後処理

  1. customthe reaction mixture was partitioned between water (30 mL) and ethyl acetate (30 mL)
  2. washThe organic layer was washed with water (30 mL) and brine (30 mL)
  3. dry with materialdried over magnesium sulphate
  4. filtrationfiltered
  5. customevaporated in vacuo
  6. customPurification
  7. washeluting with 0-10% methanol in dichloromethane

出典と根拠

ORDレコード
ord-cd5d7de5f3da41ec86ce81e84189f4c2
出典データセット
uspto-grants-2014_01
特許番号
US08629271B2

関連ノート

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