English to Russian Tech/Engineering Chemistry; Chem Sci/Eng патенты

Подскажите, пожалуйста, что с чем тут taken together?

A substituted carbazolecarboxamide or tetrahydrocarbazolecarboxamide 1, where Y is an appropriate group such as Br, Cl, or trifluoromethanesulfonyloxy, can be reacted with a boronic acid or boronic acid ester 2 (where R is, for example, H, alkyl, or ***taken together*** form an optionally substituted 1,3,2-dioxaboralane or 1,3,2-dioxaborinane), where Ar represents one of the groups Q of Formula (I) in which the point of attachment to the carbazole or tetrahydrocarbazole moiety is located on a benzene ring of Q, to provide a compound 3