Wyniki wyszukiwania - BazTech

Ograniczanie wyników

Znaleziono wyników: 1

Liczba wyników na stronie

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: condensed triterpene quinolines

Sortuj według:

Ogranicz wyniki do:

Triterpenoids : part XV : quinoline derivatives of oleanane

Zaprutko L.

Polish Journal of Chemistry

1999

vol. 73 nr 2

333-338

Olean-12-en-, 11-oxoolean-12-en, and 12-oxoolean[3,2-b]quinoline-28-oic acid methyl estres (3a-3c) were obtained from the respective 3-oxoderivatives 1a-1c through the C(2) o-nitrobenzylidene derivatives 2a-2c. It was observed that the C(3) carbonyl group had an activating effect on the neighbouring methylene function and the C(2) and C(12) carbonyl group in some derivatives of methyl oleanolate were deprived of this property.