Show how compound 1 is prepared from common starting

Question

Question 1:

The alkylation of "Evans" enolates is very highly diastereoselective as we have discussed, and shown below.

Part 1. Show how Compound 1 is prepared from common starting materials.

Part 2. Explain the origins of the diastereoselectivity observed in Compound 2

Part 3. Show how Compound 2 is efficiently converted into Compound 3

Question 2:

Upon treatment with the strong base sodium hexamethyldisilazide (NaHMDS), one of the compounds shown undergoes intramolecular cyclization to give a tricyclic ketone.

The other compound does not cyclize. Indicate which compound will cyclize and provide an explanation for your selection.