| 摘要 |
<p>Salts of (S)-amino succinic anhydride are prepd. by (a) reacting a salt of (S)-amino succinic acid with dimethyl formimide chlorosulphite, in presence of solvent and at 0-35 deg. C, to obtain (S)-amino succinic anhydride hydrochloride, which is isolated by filtration; and (b) reacting this with trifluoromethane sulphonic acid and p-toluene sulphonic acid to obtain the corresp. salts.</p> |
