Katsumadain A, a naturally occurring in fl uenza virus neuraminidase (NA) inhibitor, was synthesized by using a bioinspired, organocatalytic enantioselective 1,4-conjugate addition of styryl-2-pyranone with cinnamaldehyde, followed by a tandem Horner-Wadsworth-Emmons/oxa Michael addition.
Katsumadain A 是一种天然存在于流感病毒
神经氨酸酶 (NA) 的
抑制剂,通过使用
生物启发的有机催化对映选择性 1,4-共轭加成与
肉桂醛苯乙烯基-2-
吡喃酮,然后是串联的 Horner-Wadsworth-Emmons/奥沙迈克尔加法。