e.g. Filippa Pettersson or Cancer Res. 75(6) , 1102-12, (2015) or 10.1002/anie.201600521
The Journal of Organic Chemistry
Efficient optical resolution of 2, 2'-dihydroxy-1, 1'-binaphthyl and related compounds by complex formation with novel chiral host compounds derived from tartaric acid
F Toda, K Tanaka
Index: Toda, Fumio; Tanaka, Koichi Journal of Organic Chemistry, 1988 , vol. 53, # 15 p. 3607 - 3609
12 been reported so far, for example, resolution by inclusion complex formation with optically active methyl m-tolyl sulfoxide'and by fractional recrystallization of the cinchonine salt of the cyclic phosphoric acid derivative of ll. S However, these are not efficient preparative methods for obtaining optically active 11 in bulk, because preparation of the optically active methyl m-tolyl sulfoxide is not easy and cinchonine is very expensive. ...