It is a stereoisomer and pseudo-enantiomer of cinchonidine.
2.
Quinimax is a combination of four alkaloids ( quinine, quinidine, cinchoine and cinchonidine ).
3.
The first reported example of this type of catalysis is attributed to Dolling, Davis & Grabowski who in 1984 used a chiral cinchonidine based phase transfer catalyst in the synthesis of indacrinone.
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