Аннотация:
Arylthiolation of new dehydroalanine NiII Schiff-base complex containing (S)-2-[N-(N′-2,3-dichlorobenzylprolyl)amino]-5-chlorobenzophenone auxiliary affords (S,R)-cysteine derivatives in high chemical yield (65–88%) and with excellent diastereoselectivity (de up to 91%), which significantly exceeds that for the commonly used analogue depriving of three chlorine atoms.