Front Cover. Sinomenium acutum is widely distributed in Korea, Japan and China, and its rattan stem as a kind of traditional Chinese Medicine (Sinomenii Caulis) has a broad range of physiological activities such as anti-inflammation, anticancer and anti-arrhythmia. Furthermore, it has been used to treat rheumatoid arthritis and its symptoms in recorded history in China. Three new alkaloids (1 – 3), one new diphenyl ether (4), along with fifteen known alkaloids (5 – 19), were isolated from the rattan stems of S. acutum. The isolated compounds were tested for the anti-inflammatory potential by measuring the amount of NO production, compounds 4 and 5 had strong NO inhibitory activity as reported by C. Wang et al. in their research article at 10.1002/cbdv.202200334.