C,1,17.7,s, C,2,67.1,s, O,3,,, C,4,83.7,s, C,5,20.9,s, C,6,28.4,s, C,7,177.9,s, O,8,,, O,9,,, H,10,1.17,d,6.1 H,11,1.17,d,6.1 H,12,1.17,d,6.1 H,13,3.66,qd,"6.1,4.6" H,14,,, H,15,4.61,ddd,"8.5,4.6,2.3" H,16,2.24,m, H,17,2.24,m, H,18,2.54,ddd,"18.4,10.8,9.9" H,19,2.54,ddd,"18.4,9.7,1.2"