Scheme 2.

Reactions used for screening the nucleophile preference of the D6X/T26X library. Stereoselectivity was analyzed through cyclic acetal formation. Reaction conditions: i) NaBH4, MeOH ii) 2,2‐dimethoxypropane, H+.

Reactions used for screening the nucleophile preference of the D6X/T26X library. Stereoselectivity was analyzed through cyclic acetal formation. Reaction conditions: i) NaBH4, MeOH ii) 2,2‐dimethoxypropane, H+.