title: N-[4-(7-Meth-oxy-2-oxo-2H-chromen-8-yl)-2-methyl-butan-2-yl]propionamide.
abstract: In the crystal structure of the title osthol derivative, C(18)H(23)NO(4), mol-ecules are linked by N-H⋯O hydrogen bonds into an infinite chain running parallel to the c axis. The CH(3)CH(2)- atoms of the propionamide group are disordered over two sets of sites with refined occupancies of 0.689 (12) and 0.311 (12).
authors: L
authors: L
authors: Amirthasanjeevi
authors: K
authors: K
authors: Ravi Kumar
authors: S S
authors: SS
authors: Rajan