What is the molecular formula of the molecule (6-propan-2-ylpyridin-2-yl)methyl N-[(2S)-1-[[(2S,4S,5S)-4-hydroxy-1,6-diphenyl-5-(pyridin-3-ylmethoxycarbonylamino)hexan-2-yl]amino]-3-methyl-1-oxobutan-2-yl]carbamate ?