[10] Tiwari J., Singh S., Saquib M., Tufail F., Sharma A.K., Singh S., Singh J., Singh J.,
Organocatalytic Mediated Green Approach: A Versatile New L-Valine Promoted Synthesis of Diverse and Densely Functionalized 2-Amino-3-Cyano-4H-Pyrans,
Synth. Commun.,
48(2): 188-196 (2018).
[11] Kumar D., Reddy V.B., Sharad S., Dube U., Kapur S.,
A Facile One-Pot Green Synthesis and Antibacterial Activity of 2-Amino-4H-Pyrans and 2-Amino-5-Oxo-5,6,7,8-Tetrahydro-4H-Chromenes,
Eur. J. Med. Chem.,
44(9): 3805-3809 (2009).