Design and synthesis of pyrido[2,3-d]pyrimidine derivatives for a novel PAC1 receptor antagonist

Ichiro Takasaki, Ai Watanabe, Takuya Okada, Daisuke Kanayama, Ryota Nagashima, Miyu Shudo, Ayaka Shimodaira, Kazuto Nunomura, Bangzhong Lin, Yurie Watanabe, Hiroaki Gouda, Atsuro Miyata, Takashi Kurihara, Naoki Toyooka