171285-20-4Relevant articles and documents
REACTION OF 6-SUBSTITUTED 3-AMINO-2-PHENYL-4(3H)-QUINAZOLINONES WITH D-RIBOSE AND L-ARABINOSE
Abdel-Megeed, Mohamed F.,Saleh, Mohamed A.,Abdo, Mohamed A.,El-Hiti, Gamal A.
, p. 1016 - 1025 (2007/10/03)
Condensation of 3-amino-2-phenyl-4(3H)-quinazolinone (Ia) and 3-amino-6-bromo-2-phenyl-4(3H)-quinazolinone (Ib) with D-ribose and L-arabinose in boiling methanol gave the corresponding N-glycosides IIa, IIIa, IIb and IIIb.Acetylation of compounds II and III, followed by Zemplen's deacetylation, afforded the N-acetyl derivatives VIa, VIb, VIIa and VIIb.According to their NMR spectra in solution, the N-ribosides exist as β-pyranosides in the 4C1(D) conformation whereas the N-arabinosides are α-pyranosides in the 4C1(L) conformation.