Are substituted sugar/carbohydrate derivatives such as sucralose still sugars/carbohydrates?

Sucralose is made from sucralose, with chlorination of 3 of the hydroxyl groups. If broken up into the 2 saccharide-type units, you'll get 1,6-dichloro-1,6-dideoxyfructose and 4-chloro-4-deoxy-D- galactose. Firstly, are those 2 compounds considered to be monosaccharides/sugars? And if so, is sucralose considered a disaccharide/sugar?


They wouldn't conform to the regular general formula for monosaccharides, (CH2O)x, but IUPAC Gold Book (<https://goldbook.iupac.org/terms/view/M04021>) says "for Monosaccharides - A term which includes aldoses, ketoses and a wide variety of derivatives. Derivation includes oxidation, deoxygenation, introduction of other substituents, alkylation and acylation of hydroxy groups, and chain branching." At what point would a derivative not be considered a monosaccharide anymore?


[![Sucralose and sucrose](https://i.stack.imgur.com/CnfBb.png)](https://i.stack.imgur.com/CnfBb.png)


