Abstract: The present disclosure provides a composition comprising a compound of formula (I) or a physiologically acceptable salt thereof, in which the compound of formula (I) or a physiologically acceptable salt thereof has a HPLC purity of ?90%; wherein R1, R2, X and n are as defined herein. The present disclosure further provides use of the composition according to the present disclosure for preparing and/or purifying a composition comprising a salt of the compound of formula (I), and a method for treating a disease caused by a Coronavirus which comprises administering the composition of the present disclosure to a subject. The composition of the present disclosure comprises the compound of formula (I) with high purity, and has good fluidity and anti-caking property; moreover, the claimed composition comprising the compound of formula (I)) with high purity is more suitable for preparing a composition comprising a salt of the compound of formula (I) with higher purity.

Abstract: A file folder assembly or divider with a tab capable of being slid in two non-collinear directions. According to one embodiment, the file folder assembly includes a file folder and a sliding tab assembly. The sliding tab assembly includes a rail secured to the file folder proximate to a top edge of the file folder. The sliding tab assembly also includes a tab and a coupling member. The coupling member couples the tab to the rail in such a way as to permit the tab to be slid horizontally back and forth along the rail and/or to permit the tab to be slid vertically up and down relative to the rail.

Abstract: A file folder assembly or divider with a tab capable of being slid in two non-collinear directions. According to one embodiment, the file folder assembly includes a file folder and a sliding tab assembly. The sliding tab assembly includes a rail secured to the file folder proximate to a top edge of the file folder. The sliding tab assembly also includes a tab and a coupling member. The coupling member couples the tab to the rail in such a way as to permit the tab to be slid horizontally back and forth along the rail and/or to permit the tab to be slid vertically up and down relative to the rail.