37.3
[]. Nicoletta Desideri, et al. Synthesis and evaluation of antirhinovirus activity of 3-hydroxy and 3-methoxy -styrylchromones. Antivir Chem Chemother. 003 Jul;4(4):95-03.
[]. Sukbok Chang, et al. A Highly Efficient and Practical Synthesis of Chromene Derivatives Using Ring-Closing Olefin Metathesis. J Org Chem. 998 Feb 6;63(3):864-866.
H35-H39-H335
P6-P64-P7-P80-P30+P35-P304+P340-P36-P405-P50