Chemistry is traditionally divided into organic and inorganic chemistry. Formula: C5H5NO3, The former is the study of compounds containing at least one carbon-hydrogen bonds.In a patent，Which mentioned a new discovery about 3405-77-4
A library of spirooxindoles containing varied elements of structural and stereochemical diversity has been constructed via a three step, one pot nitrile hydrozirconation-acylation-cyclization reaction sequence from common acyclic indole intermediates. The resulting library was evaluated for novelty through comparison with MLSMR and Maybridge compound collections.
If you are interested in 3405-77-4, you can contact me at any time and look forward to more communication. Formula: C5H5NO3
Reference：
Isoxazole – Wikipedia,
Isoxazole | C3H3NO – PubChem