Chemistry is traditionally divided into organic and inorganic chemistry. Reference of 22929-52-8, The former is the study of compounds containing at least one carbon-hydrogen bonds.In a patent，Which mentioned a new discovery about 22929-52-8
The present invention is directed to substituted certain reversed indazole compounds of Formula (I): and pharmaceutically acceptable salts thereof, wherein R1A, R1B, X, Y, RZ and R2 are as defined herein, which are potent inhibitors of LRRK2 kinase and useful in the treatment or prevention of diseases in which the LRRK2 kinase is involved, such as Parkinson’s Disease and other diseases and disorders described herein. The invention is also directed to pharmaceutical compositions comprising these compounds and the use of these compounds and compositions in the prevention or treatment of such diseases in which LRRK-2 kinase is involved.
By the way, if you are interested in learning more fun chemistry with your kids, get your hands into one chemistry set now, and start enjoying the best part of chemistry: experiments about tetrahydrofurans. Reference of 22929-52-8
Reference：
Tetrahydrofuran – Wikipedia,
Tetrahydrofuran | (CH2)3CH2O – PubChem