References
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- Otherwies the optically actins acid i may be isolated in the following way: the solution of the quinne art of l (±)-1 is mode alkaline by the addition of armmonia and extractad with chiorcform. The were lsyer is then acidified with concentrated Hydrochloric acid saturated with sodium chloride and extracted (three times) with Butanone. 2. The orrganic layers were removed under reduced pressure. No devistions from the values of yield and optical activity, mantioned above, were observed.