O,1,,, C,2,,, C,3,73.63,s, O,4,,, C,5,71.22,s, O,6,,, C,7,67.54,s, O,8,,, P,9,,, O,10,,, O,11,,, O,12,,, H,13,9.68,d,1.3 H,14,3.98,dd,"4.8,1.3" H,15,,, H,16,3.81,td,"5.4,4.8" H,17,,, H,18,4.05,ddd,"11.4,7.0,5.4" H,19,4.02,ddd,"11.4,7.0,5.4" H,20,,, H,21,,,