Boc-L-Valine → n-Boc-valinyl-valine benzyl ester

反応式

[NH:1]([C:9]([O:11][C:12]([CH3:15])([CH3:14])[CH3:13])=[O:10])[C@H:2]([C:6]([OH:8])=O)[CH:3]([CH3:5])[CH3:4].C1(C)C=CC(S(O)(=O)=O)=CC=1.[CH2:27]([O:34][C:35](=[O:41])[C@H:36]([CH:38]([CH3:40])[CH3:39])[NH2:37])[C:28]1[CH:33]=[CH:32][CH:31]=[CH:30][CH:29]=1>>[CH2:27]([O:34][C:35](=[O:41])[C@H:36]([CH:38]([CH3:39])[CH3:40])[NH:37][C:6](=[O:8])[C@H:2]([CH:3]([CH3:4])[CH3:5])[NH:1][C:9]([O:11][C:12]([CH3:15])([CH3:14])[CH3:13])=[O:10])[C:28]1[CH:33]=[CH:32][CH:31]=[CH:30][CH:29]=1

参加物

反応物 2

HCID 83693Boc-L-Valine

HCID 11567066O-benzyl-L-valine toluene-p-sulphonate

生成物 1

HCID 12854597n-Boc-valinyl-valine benzyl ester

実験手順

Boc-Val-OH (2.86 g, 13.2 mmol) was coupled to valine benzyl ester p-toluenesulfonate (5.0 g, 13.2 mmol) using the procedure of Example 55 to give 5.41 g, (100%) of the desired product (RF 0.15; 20% ethyl acetate in hexane) as a colorless gum. Mass spectrum (M+H)+ =407.

出典と根拠

ORDレコード: ord-9822edb91e4347299c7822f145c61579
出典データセット: uspto-grants-1997_09
DOI: 10.6084/m9.figshare.5104873.v1
特許番号: US05670675

反応ノート

読み込み中…