Nature CommunicationsPyridium-π interaction preserves N,S-benzylidene thioacetals in acidolysis enabling efficient protein chemical synthesisZhenquan SunYaoyue ZhangXueqian ZhaoYisa XiaoZhixiang ZhongHongxiang WuXuechen Li2026-05-19Full textDOI https://doi.org/10.1038/s41467-026-73342-3