What is the molecular formula of the molecule identified by 3-[2-[(Z)-[3-(2-bicyclo[2.2.1]heptanyl)-4-oxo-2-sulfanylidene-1,3-thiazolidin-5-ylidene]methyl]-5-(3,5-dimethoxyphenyl)furan-3-yl]propyl 5-(9H-fluoren-9-ylmethoxycarbonylamino)pentanoate ?