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^*