This route shares the first three bolts with Little Flatiron Left. At the horizontal break just above the third bolt, traverse slightly right and clip a fourth bolt. The crux (5.6+/5.7) is gaining the thin crack above the 4th bolt. Continue up the crack placing gear to the fifth and final bolt. The top shares the same anchor as Little Flatiron Left.
Protection
5 bolts plus small stoppers or small Aliens down low in the crack to finger to thin hand-sized pro up higher.