Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4816459 | Tetrazolyl-substituted pyrido[1,2-a]pyrimidines and use as SRS-A antagonists | Naoto Matsuishi, Yoshio Nakagawa, Michiaki Amano, Norihiko Kakehi, Shigeki Omura | 1989-03-28 |
| 4798832 | Pyrido[1,2-a]pyrimidine compounds, corresponding intermediates and use as SRS-A antagonists | Naoto Matsuishi, Yoshio Nakagawa, Michiaki Amano, Norihiko Kakehi, Shigeki Omura | 1989-01-17 |