Trifluoroacetic acid → [8S]-7-(3-mercapto-2-methylthio-1-oxo-propyl)-7-aza-1,4-dithiaspiro[4.4]nonane-8-carboxylic acid
Reaktionsgleichung
COC1C=CC(C[S:10][CH2:11][CH:12]([S:27][CH3:28])[C:13]([N:15]2[C@H:23]([C:24]([OH:26])=[O:25])[CH2:22][C:17]3([S:21][CH2:20][CH2:19][S:18]3)[CH2:16]2)=[O:14])=CC=1.FC(F)(F)C(O)=O.C1(OC)C=CC=CC=1>>[SH:10][CH2:11][CH:12]([S:27][CH3:28])[C:13]([N:15]1[C@H:23]([C:24]([OH:26])=[O:25])[CH2:22][C:17]2([S:21][CH2:20][CH2:19][S:18]2)[CH2:16]1)=[O:14]Komponenten
4
Edukt 3
Produkt 1
Versuchsvorschrift
The product from part (b) is mixed with trifluoroacetic acid and anisole under nitrogen. The solvents are removed under vacuum to yield as a residue [8S]-7-(3-mercapto-2-methylthio-1-oxo-propyl)-7-aza-1,4-dithiaspiro[4.4]nonane-8-carboxylic acid.