(1S)-[{{(2S,4R)-4-(tert-butyldiphenylsilyloxy)pyrrolidin-2-yl}methylsulfonyl}methyl]-7,7-dimethylbicyclo[2.2.1]heptan-2-one

(7R,8aS)-7-[(5-cyclopropylpyrazin-2-yl)oxy]-2-[4-(trifluoromethyl)benzoyl]hexahydropyrrolo[1,2-a]pyrazin-4(1H)-one

2-((3R,5S)-5-(azidomethyl)pyrrolidin-3-yloxy)-5-cyclopropylpyrazine

methyl 2-((2S,4R)-2-(azidomethyl)-4-(5-cyclopropylpyrazin-2-yloxy)pyrrolidin-1-yl)acetate

(7R,8aS)-7-[(5-cyclopropylpyrazin-2-yl)oxy]hexahydropyrrolo[1,2-a]pyrazin-3(4H)-one