1,2-Dichloroethane → 7-(2-(((1,1-Dimethylethoxy)carbonyl)amino)-1-oxo-3-((triphenylmethyl)thio)-propyl)-2-(2-methoxyphenyl)-5,6,7,8-tetrahydro-8-(2-((triphenylmethyl)thio)ethyl)-imidazo[1,2-a]pyrazine

HRID 6775

反応式

HRID 6775 の反応式
[CH3:1][O:2][C:3]1[CH:8]=[CH:7][CH:6]=[CH:5][C:4]=1[C:9]1[N:10]=[C:11]2[CH:16]([CH2:17][CH2:18][S:19][C:20]([C:33]3[CH:38]=[CH:37][CH:36]=[CH:35][CH:34]=3)([C:27]3[CH:32]=[CH:31][CH:30]=[CH:29][CH:28]=3)[C:21]3[CH:26]=[CH:25][CH:24]=[CH:23][CH:22]=3)[NH:15][CH2:14][CH2:13][N:12]2[CH:39]=1.[NH:40]([C:66]([O:68][C:69]([CH3:72])([CH3:71])[CH3:70])=[O:67])[C@H:41]([C:63](O)=[O:64])[CH2:42][S:43][C:44]([C:57]1[CH:62]=[CH:61][CH:60]=[CH:59][CH:58]=1)([C:51]1[CH:56]=[CH:55][CH:54]=[CH:53][CH:52]=1)[C:45]1[CH:50]=[CH:49][CH:48]=[CH:47][CH:46]=1.CN1CCOCC1.C1C=NC2N(O)N=NC=2C=1.C(Cl)CCl>C1COCC1>[CH3:71][C:69]([CH3:72])([O:68][C:66]([NH:40][CH:41]([CH2:42][S:43][C:44]([C:57]1[CH:62]=[CH:61][CH:60]=[CH:59][CH:58]=1)([C:51]1[CH:52]=[CH:53][CH:54]=[CH:55][CH:56]=1)[C:45]1[CH:46]=[CH:47][CH:48]=[CH:49][CH:50]=1)[C:63]([N:15]1[CH2:14][CH2:13][N:12]2[CH:39]=[C:9]([C:4]3[CH:5]=[CH:6][CH:7]=[CH:8][C:3]=3[O:2][CH3:1])[N:10]=[C:11]2[CH:16]1[CH2:17][CH2:18][S:19][C:20]([C:33]1[CH:34]=[CH:35][CH:36]=[CH:37][CH:38]=1)([C:27]1[CH:28]=[CH:29][CH:30]=[CH:31][CH:32]=1)[C:21]1[CH:26]=[CH:25][CH:24]=[CH:23][CH:22]=1)=[O:64])=[O:67])[CH3:70]

参加物

7

反応物 5

HCID 111,2-DichloroethaneHCID 79724-MethylmorpholineHCID 181649HOAtHCID 11167161N-((1,1-Dimethylethoxy)carbonyl)-S-(triphenylmethyl)-L-cysteineHCID 220168072-(2-Methoxyphenyl)-5,6,7,8-tetrahydro-8-(2-((triphenylmethyl)thio)ethyl)-imidazo[1,2-a]pyrazine

生成物 1

HCID 220168237-(2-(((1,1-Dimethylethoxy)carbonyl)amino)-1-oxo-3-((triphenylmethyl)thio)-propyl)-2-(2-methoxyphenyl)-5,6,7,8-tetrahydro-8-(2-((triphenylmethyl)thio)ethyl)-imidazo[1,2-a]pyrazine収率 97%

試薬・触媒・溶媒 1

HCID 8028Tetrahydrofuran溶媒

実験手順

A mixture of the product from Step 13.g. (compound xxi, where R2, R3, R5, R6, and R7 are H, R4 is 2-methoxyphenyl, and n is 1) (1.30 g, 2.45 mmol), Boc-(L)-Cys(Trt)-OH (1.14 g, 2.45 mmol), NMM (270 uL, 2.45 mmol), and HOAt (333 mg, 2.45 mmol) in THF (20 ml) was treated with EDC (470 mg, 2.45 mmol) at room temperature under N2. The reaction was stirred overnight and then concentrated under reduced pressure. Saturated NaHCO3 solution (25 ml) was added and the product was extracted with a 3:2 mixture of hexanes:EtOAc. The extracts were applied to a silica gel column and the product was eluted with 3:2/hexanes:EtOAc. Product fractions were combined and concentrated under reduced pressure to obtain a white foam (2.31 g, 97%) which was used without further purification. Mass spec. 977.6 MH+.

後処理

  1. concentrationconcentrated under reduced pressure
  2. additionSaturated NaHCO3 solution (25 ml) was added
  3. extractionthe product was extracted with a 3:2 mixture of hexanes
  4. washthe product was eluted with 3:2/hexanes
  5. concentrationconcentrated under reduced pressure

出典と根拠

ORDレコード
ord-2f69eb22a73548d49d0fdc2cd160693e
出典データセット
uspto-grants-2006_08
特許番号
US07084135B1

関連ノート

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