Abstract: In an example embodiment, an atomizer for dispensing cleaning solution from a capsule is provided. The atomizer comprises a handle, a base, and a pipette extending from the base to the nozzle. The handle comprises a nozzle, a trigger, and a capsule receiving portion. The base comprises a reservoir portion configured for receiving cleaning solution from the capsule. The handle is configured to be secured to the base. When the capsule is positioned within the capsule receiving portion and the handle is secured to the base the cleaning solution is provided to the reservoir portion. When the capsule is positioned within the capsule receiving portion, the handle is secured to the base, and the trigger is activated, the cleaning solution is dispensed from the reservoir portion through the pipette and out of the nozzle.

Abstract: A process for preparing a single enantiomer of a 4-aryloxyazetidin-2-one derivative in optically pure form comprises reacting a hindered vinyl ester with chlorosulphonyl isocyanate; displacing the hindered acyloxy group with a phenolic derivative containing a protected carboxy group; deprotecting the carboxylate moiety; resolving with a chiral amine; filtering; and regenerating the desired enantiomer by acidification. A method for enriching the product obtained from the acyloxy displacement step in favour of the desired enantiomeric form, by treating with an asymmetric catalyst such as a chiral alkaloid derivative, is provided; as also is a method for racemising the unwanted antipode of the desired 4-aryloxyazetidin-2-one enantiomer. The invention further provides novel enantiomers based on the 4-aryloxyazetidin-2-one ring structure.