P305+P351+P338：IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
Description
tert-Butyl 3-oxa-7,9-diazabicyclo[3.3.1]nonane-9-carboxylate is used in preparation of substituted pyrazolopyridines as inhibitors of FGFR tyrosine kinases for treatment of FGFRs-mediated diseases.
![9-Boc-3-oxa-7,9-diazabicyclo[3.3.1]nonane](https://www.chemicalbook.com/CAS/20150408/GIF/1251010-45-3.gif)
