海思科公布国际专利申请：“一种三环稠杂环类PDE3/4双重抑制剂及其中间体的制备方法”

Group 1 - The core point of the article is that Haishike (002653) has filed an international patent application for a dual inhibitor of PDE3/4, indicating ongoing innovation in its product pipeline [1] - The patent application number is PCT/CN2025/114413, with an international publication date set for February 19, 2026 [1] - Haishike has filed a total of five international patent applications this year, maintaining the same level as the previous year [1] Group 2 - In the first half of 2025, Haishike invested 342 million yuan in research and development, reflecting a year-on-year increase of 59.22% [1]