O,1,,, C,2,169.23,s, O,3,,, C,4,123.61,s, C,5,141.21,s, C,6,140.72,s, C,7,129.21,s, C,8,123.85,s, C,9,147.36,s, N,10,,, O,11,,, O,12,,, C,13,123.85,s, C,14,129.21,s, H,15,,, H,16,6.5,d,16.0 H,17,7.7,d,16.0 H,18,7.99,ddd,"8.4,1.9,0.5" H,19,8.19,ddd,"8.4,2.4,0.5" H,20,8.19,ddd,"6.5,2.4,0.5" H,21,7.99,ddd,"6.5,1.9,0.5"