Complex sentence: The oxazole analogue is also known US Patent 3,401,172-4-methyl-5-(2-chloroethyl) oxazole that gives a useful insight into the QSAR.
Split into simpler sentences: The oxazole analogue is also known US Patent 3,401,172-4-methyl-5-(2-chloroethyl) oxazole. It gives a useful insight into the QSAR.