Ammonia → 6-Fluoro-3-((S)-1,4,4-trimethyl-pyrrolidin-2-yl)-[1,2,4]triazolo[4,3-a]pyridine

HRID 1402286ノート

反応式

HRID 1402286 の反応式
[F:1][C:2]1[CH:3]=[CH:4][C:5]([NH:8][NH:9][C:10]([C@@H:12]2[CH2:16][C:15]([CH3:18])([CH3:17])[CH2:14][N:13]2[CH3:19])=O)=[N:6][CH:7]=1.C1C=CC(P(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1.CCN(CC)CC.ClC(Cl)(Cl)C(Cl)(Cl)Cl.N>C1COCC1.CO.C(Cl)Cl>[F:1][C:2]1[CH:3]=[CH:4][C:5]2[N:6]([C:10]([C@@H:12]3[CH2:16][C:15]([CH3:18])([CH3:17])[CH2:14][N:13]3[CH3:19])=[N:9][N:8]=2)[CH:7]=1

参加物

9

反応物 5

HCID 222AmmoniaHCID 6214HexachloroethaneHCID 8471TriethylamineHCID 11776TriphenylphosphineHCID 86687127(S)-1,4,4-Trimethyl-pyrrolidine-2-carboxylic acid N'-(5-fluoro-pyridin-2-yl)-hydrazide

生成物 1

HCID 866871286-Fluoro-3-((S)-1,4,4-trimethyl-pyrrolidin-2-yl)-[1,2,4]triazolo[4,3-a]pyridine収率 84.6%

試薬・触媒・溶媒 3

HCID 887Methanol溶媒HCID 6344Dichloromethane溶媒HCID 8028Tetrahydrofuran溶媒

実験手順

To a solution of Intermediate 87b (950 mg, 3.57 mmol), Ph3P (1.87 g, 7.14 mmol) and Et3N (1.44 g, 14.28 mmol) in THF (40 mL) was added hexachloroethane (1.65 g, 7.14 mmol) and the mixture stirred at RT for 20 h. The reaction mixture was applied to an SCX-2 cartridge (70 g) and washed with MeOH. The product was eluted with 2M NH3 in MeOH; concentration in vacuo gave a residue. FCC, using 0-10% [2M NH3 in MeOH] in DCM gave the title compound as a clear oil (750 mg, 84%). 1H NMR (400 MHz, CDCl3): 1.22 (3H, s), 1.24 (3H, s), 1.84 (1H, dd, J 12.7, 10.8), 2.04 (1H, dd, J 12.4, 7.4), 2.16 (3H, s), 2.25 (1H, d J, 9.1), 3.04 (1H, d, J 9.3), 4.22 (1H, dd, J 10.0, 7.6), 7.14-7.23 (1H, m), 7.69-7.77 (1H, m), 8.75-8.80 (1H, m).

後処理

  1. washwashed with MeOH
  2. washThe product was eluted with 2M NH3 in MeOH
  3. concentrationconcentration in vacuo
  4. customgave a residue

出典と根拠

ORDレコード
ord-d17283dd1d1f4b759a18e65eab8d1227
出典データセット
uspto-grants-2014_12
特許番号
US08907094B2

反応ノート

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