7- ( 3- [ 2- ( 3,5-dihydroxyphenyl ) -2-hydroxy-ethylamino ] -propyl ) -theophylline ( reproterol , d 1959 , bronchospasmin ) was developed as a bronchospasmolytic agent from the structure class of the phenylethyl-aminoalkyl-xanthines .
C0039771
theophylline
C0043318
xanthines