Diisopropylethylamine → (2S,4R)-methyl 1-((2S,3R)-2-(tert-butoxycarbonylamino)-3-ethyl-5-methylnon-8-enoyl)-4-hydroxypyrrolidine-2-carboxylate

HRID 523191ノート

反応式

HRID 523191 の反応式
[C:1]([O:5][C:6]([NH:8][CH:9]([C@H:13]([CH2:21][CH3:22])[CH2:14][CH:15]([CH3:20])[CH2:16][CH2:17][CH:18]=[CH2:19])[C:10]([OH:12])=O)=[O:7])([CH3:4])([CH3:3])[CH3:2].CCN(C(C)C)C(C)C.CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.[OH:56][C@H:57]1[CH2:61][NH:60][C@H:59]([C:62]([O:64][CH3:65])=[O:63])[CH2:58]1>ClCCl>[C:1]([O:5][C:6]([NH:8][C@@H:9]([C@H:13]([CH2:21][CH3:22])[CH2:14][CH:15]([CH3:20])[CH2:16][CH2:17][CH:18]=[CH2:19])[C:10]([N:60]1[CH2:61][C@H:57]([OH:56])[CH2:58][C@H:59]1[C:62]([O:64][CH3:65])=[O:63])=[O:12])=[O:7])([CH3:2])([CH3:3])[CH3:4]

参加物

6

反応物 4

HCID 81531DiisopropylethylamineHCID 7015125(4R)-4-Hydroxy-L-proline methyl esterHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 86683261(3R)-2-(tert-butoxycarbonylamino)-3-ethyl-5-methylnon-8-enoic acid

生成物 1

HCID 86683260(2S,4R)-methyl 1-((2S,3R)-2-(tert-butoxycarbonylamino)-3-ethyl-5-methylnon-8-enoyl)-4-hydroxypyrrolidine-2-carboxylate収率 53.4%

試薬・触媒・溶媒 1

HCID 6344Dichloromethane溶媒2 回

実験手順

To a solution of (3R)-2-(tert-butoxycarbonylamino)-3-ethyl-5-methylnon-8-enoic acid (2.0 g, 6.4 mmole) in dichloromethane (20 mL) was added DIPEA (1.93 mL, 19.2 mmole) and HATU (2.42 g, 6.38 mmole) followed by (2S,4R)-methyl 4-hydroxypyrrolidine-2-carboxylate (1.15 g, 6.38 mmole) at room temperature. The reaction mixture was stirred at room temperature for 2 h. The reaction mass was diluted with DCM and washed with water. The organic layer was dried over anhydrous Na2SO4; filtered; then concentrated under reduced pressure to get crude compound as mixture of diastereomers. The material was subjected to SFC purification to afford (2S,4R)-methyl 1-((2S,3R)-2-(tert-butoxycarbonylamino)-3-ethyl-5-methylnon-8-enoyl)-4-hydroxypyrrolidine-2-carboxylate (1.5 g, 53%). MS: MS m/z 441.6 (M++1).

後処理

  1. washwashed with water
  2. dry with materialThe organic layer was dried over anhydrous Na2SO4
  3. filtrationfiltered
  4. concentrationthen concentrated under reduced pressure
  5. customto get crude compound
  6. additionas mixture of diastereomers
  7. customThe material was subjected to SFC purification

出典と根拠

ORDレコード
ord-c986ea5d580242699b99239ec61a45b1
出典データセット
uspto-grants-2016_05
特許番号
US09334279B2

反応ノート

読み込み中…