Pyran | definition of pyran by Medical dictionary
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a cyclic compound in which the ring consists of 5 carbon atoms and 1 oxygen atom.
A cyclic compound that may be considered the formal parent of sugars with an oxygen bridge from carbon atoms 1-5 (the pyranoses).
pyran /py·ran/ (pi´ran) a cyclic compound in which the ring consists of five carbon atoms and one oxygen atom.
a cyclic compound in which the ring consists of five carbon atoms and one oxygen atom.
References in periodicals archive
Our product ISO PYRAN
S can be used wherever requirements are needed in addition to protection from fire.
This basic structure is comprised of two benzene rings (A and B) linked through a heterocyclic pyran
or pyrone (with a double bond) ring (c) in the middle.
It is proposed that the pyran
ring would be important for enhancing the antiplasmodial activity of furoquinolines, similarly as it is considered for acridone alkaloids (Basco et al.
Equol, unlike its precursor daidzein, have a chiral carbon atom at position of the pyran
The opening of the pyran
ring as in (5) compared to (2) with a pyran
ring led to a reduction in activity of (5) by 10% and 18% at 24 and 48 h, respectively.