N-[(1S,2R,3S,4R)-2,3-dihydroxy-4-[6-[2-(2-phenylphenyl)ethylamino]-2-[(3R)-3-[[(3R)-pyrrolidin-3-yl]carbamoylamino]pyrrolidin-1-yl]purin-9-yl]cyclopentyl]propanamide The above is the IUPAC name of a molecule. Write its molecular formula.