40. Identify reagent(s) that you could use most effectively to achieve the transformation. reagent? t (A) K2CO3 (B) LDA (C) pyridine (D) CH3Li (E) CH3OTs

2. Physostigmine is used in the treatment of glaucoma. Within this structure, the atom indicated by is most basic, while atom is least basic. (A) 1 (most basic), 4 (least basic) (B) 1 (most basic), 3 (least basic) (C) 2 (most basic), 4 (least basic) (D) 2 (most basic), 3 (least basic) (E) None of the above.