Penicillamine → 5,5-Dimethyl-2-(3-hydroxy-5-hydroxymethyl-2-methyl-4-pyridyl)-thiazolidine-4(S)-carboxylic acid

Beteiligte Stoffe

Reaktionsschritte

2.03 g (10 mmoles) of pyridoxal hydrochloride are added to a solution containing 1.50 g (10 mmoles) of D-penicillamine and 0.56 g of potassium hydroxide in 10 ml of water. After stirring for 16 hours, the precipitate is filtered out to give the title acid in a yield of 2.26 g (75.7%) which can be purified by boiling with ethanol, m.p.: 201°-202° C., [α]D25 =+68.1°.

Herkunft & Nachweise