[Six-membered heterocycles containing an oxygen and a nitrogen. ( MSH )]
UMLS (CSP) C0030001 Relation/PAR: Heterocyclic Compounds, 1-Ring
nitrogenous heterocyclic compound
oxygenous heterocyclic compound
Relation/CHD: flavin
morpholine
Efavirenz
2-oxo-N,3-bis-(2-chloroethyl) tetrahydro-2H-1,3,2-oxazaphosphorin- 2-amine
morpholine
L 743726