Organic compounds -- part of the class 532-570 series – Organic compounds – Nitrogen attached directly or indirectly to the purine ring...
Patent
1979-07-16
1981-10-13
Rizzo, Nicholas S.
Organic compounds -- part of the class 532-570 series
Organic compounds
Nitrogen attached directly or indirectly to the purine ring...
544318, 544315, 544408, 546288, 546300, 548305, 548337, 26032615, 2603265R, C07D23924, C07D24110
Patent
active
042949661
ABSTRACT:
The invention relates to a process for inverting the configuration in optically active compounds of the formula ##STR1## in which Ar.sub.1 represents a monocyclic or polycyclic, carbocyclic or heterocyclic radical that has at least one ring of aromatic character and is bonded to the oxygen atom by way of a ring carbon atom, preferably of the ring of aromatic character, and
REFERENCES:
patent: 2446192 (1948-08-01), Pfister
Nagai et al., "Liebigs Annalen der Chemie", 470, pp. 157-182 (1929).
"J. Am. Chem. Soc.", 70, pp. 2297-2298 (1948).
Chem. Abst. 84, 43593x (1976).
Muller "Liebigs Annalen der Chemie", 599, 211-221 (1956).
Almaula Prabodh I.
Ciba-Geigy Corporation
Rizzo Nicholas S.
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