Patent ID: 9233988
Filing Date: 2016-01-12
CPC Classification: C04B,C07D,C07F

Claim Text:
1. A silyl-protected nitrogen-containing cyclic compound having the formula (1): wherein R 1 , R 2 and R 3 each are an unsubstituted monovalent hydrocarbon group of 1 to 20 carbon atoms, R 4 and R 5 each are a divalent hydrocarbon group such that the cyclic structure containing R 4 and R 5 is piperazine, and hexahydropyrimidine, R 6 , R 7 and R 8 each are hydrogen or an unsubstituted monovalent hydrocarbon group of 1 to 20 carbon atoms, A is —C(O)OR 9 or —C≡N, R 9 is an unsubstituted monovalent hydrocarbon group of 1 to 20 carbon atoms, and a is 0 or 1.