Propose a structure for the hexopyranose (CH0) in the *C, conformation for which the C- and 'H-NMR data are tabulated below (8*: chemical shift of the hydrogen bonded to the carbon in the same row in the table). Indicate if there is any uncertainty in your structural proposal. Gn sp2 alk. oc 96.1 77.3 74.1 72.4 67.8 62.1 DH 1 1 1 1. 2 } * 5.05 3.37 3.66 3.90 3.58 3.95 3.75 JHH (Hz) 2 10,3,6 10,2 2,2 10,10 12,3 12,6