Chloroform → (2R)-2-[(4-{[(8-Fluoro-2,3-dihydro-1,4-benzodioxin-6-yl)methyl]amino}-1-piperidinyl)methyl]-1,2-dihydro-3H,8H-2a,5,8a-triazaacenaphthylene-3,8-dione hydrochloride

HRID 1943227ノート

反応式

HRID 1943227 の反応式
[NH2:1][CH:2]1[CH2:7][CH2:6][N:5]([CH2:8][C@H:9]2[N:19]3[C:20]4[N:11]([C:12](=[O:22])[CH:13]=[CH:14][C:15]=4[N:16]=[CH:17][C:18]3=[O:21])[CH2:10]2)[CH2:4][CH2:3]1.[F:23][C:24]1[C:29]2[O:30][CH2:31][CH2:32][O:33][C:28]=2[CH:27]=[C:26]([CH:34]=O)[CH:25]=1.C(O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+].C([O-])(O)=O.[Na+].C(Cl)(Cl)[Cl:56]>CO>[ClH:56].[F:23][C:24]1[C:29]2[O:30][CH2:31][CH2:32][O:33][C:28]=2[CH:27]=[C:26]([CH2:34][NH:1][CH:2]2[CH2:7][CH2:6][N:5]([CH2:8][C@H:9]3[N:19]4[C:20]5[N:11]([C:12](=[O:22])[CH:13]=[CH:14][C:15]=5[N:16]=[CH:17][C:18]4=[O:21])[CH2:10]3)[CH2:4][CH2:3]2)[CH:25]=1

参加物

7

反応物 5

HCID 6212ChloroformHCID 516892Sodium BicarbonateHCID 5049666Sodium triacetoxyborohydrideHCID 574231098-Fluoro-2,3-dihydro-1,4-benzodioxin-6-carboxaldehydeHCID 58200877(2R)-2-[(4-Amino-1-piperidinyl)methyl]-1,2-dihydro-3H,8H-2a,5,8a-triazaacenaphthylene-3,8-dione

生成物 1

HCID 68597447(2R)-2-[(4-{[(8-Fluoro-2,3-dihydro-1,4-benzodioxin-6-yl)methyl]amino}-1-piperidinyl)methyl]-1,2-dihydro-3H,8H-2a,5,8a-triazaacenaphthylene-3,8-dione hydrochloride収率 49.5%

試薬・触媒・溶媒 1

HCID 887Methanol溶媒

実験手順

A suspension of (2R)-2-[(4-amino-1-piperidinyl)methyl]-1,2-dihydro-3H,8H-2a,5,8a-triazaacenaphthylene-3,8-dione (for a preparation see Example 16A(j)) (58.5 mg, 0.194 mmol) and 8-fluoro-2,3-dihydro-1,4-benzodioxin-6-carbaldehyde (for a synthesis see WO2007122258, Example 8(b)) (31.8 mg, 0.175 mmol) in chloroform (2 ml) and methanol (0.100 ml) at room temperature under nitrogen was stirred for 0.5 h. This was then treated with sodium triacetoxyborohydride (123 mg, 0.582 mmol) and stirred for 90 min. This was then treated with saturated aqueous NaHCO3 (10 ml) and extracted with 20% methanol/DCM (3×25 ml). The combined organic extracts were dried (NaSO4), filtered, evaporated and purified using silica chromatography (0-20% methanol/DCM) to give the free base of the title compound as a yellow gum (44.9 mg, 49.5%).

後処理

  1. extractionextracted with 20% methanol/DCM (3×25 ml)
  2. dry with materialThe combined organic extracts were dried (NaSO4)
  3. filtrationfiltered
  4. customevaporated
  5. custompurified

出典と根拠

ORDレコード
ord-279d992060f54c0ab7c5bc5f967a12e6
出典データセット
uspto-grants-2013_03
特許番号
US08389524B2

反応ノート

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