Compounds of the formula: ##STR00001## wherein R1, R2, R3, A1 and A2 are as defined herein, which are used advantageously in inhibiting the TGF-.beta. and/or activin signaling pathway in mammals.

 
Web www.patentalert.com

< Stabilization of radiopharmaceutical compositions using hydrophilic thioethers

> Treatment of hemophilia with human Factor IX produced in mammary tissue of transgenic mammals
~ 00453