Borrajo, Alison M. P. et al. published their research in Bioorganic & Medicinal Chemistry Letters in 1997 | CAS: 53784-83-1

Heptakis(6-Bromo-6-Deoxy)-β-Cyclodextrin (cas: 53784-83-1) belongs to organobromine compounds. Bromine is more electronegative than carbon (2.9 vs 2.5). Consequently, the carbon in a carbon–bromine bond is electrophilic, i.e. alkyl bromides are alkylating agents. Many of the alkyl bromine derivatives are excellent alkylating agents since bromides are good leaving groups. Tribromides, like tetrabutylammonium tribromide, are used as a solid source of bromine. N-bromosuccimide (NBS) is used for the selective bromination of allylic bonds.Formula: C42H63Br7O28

Derivatized cyclodextrins as peptidomimetics: influence on neurite growth was written by Borrajo, Alison M. P.;Gorin, Boris I.;Dostaler, Suzanne M.;Riopelle, Richard J.;Thatcher, Gregory R. J.. And the article was included in Bioorganic & Medicinal Chemistry Letters in 1997.Formula: C42H63Br7O28 This article mentions the following:

Per-6-bromo-6-deoxy-cyclodextrins may be functionalized to yield amine-derivatized cyclodextrin mimics of glycosaminoglycan sulfate binding domains of peptides, which inhibit neurite growth in vitro. In the experiment, the researchers used many compounds, for example, Heptakis(6-Bromo-6-Deoxy)-β-Cyclodextrin (cas: 53784-83-1Formula: C42H63Br7O28).

Heptakis(6-Bromo-6-Deoxy)-β-Cyclodextrin (cas: 53784-83-1) belongs to organobromine compounds. Bromine is more electronegative than carbon (2.9 vs 2.5). Consequently, the carbon in a carbon–bromine bond is electrophilic, i.e. alkyl bromides are alkylating agents. Many of the alkyl bromine derivatives are excellent alkylating agents since bromides are good leaving groups. Tribromides, like tetrabutylammonium tribromide, are used as a solid source of bromine. N-bromosuccimide (NBS) is used for the selective bromination of allylic bonds.Formula: C42H63Br7O28

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary