C,1,19.8,s,
C,2,57.53,s,
N,3,,,
C,4,57.53,s,
N,5,,,
C,6,174.5,s,
O,7,,,
O,8,,,
H,9,1.29,d,6.4
H,10,1.29,d,6.4
H,11,1.29,d,6.4
H,12,4.28,qd,"6.4,5.5"
H,13,,,
H,14,,,
H,15,4.28,d,5.5
H,16,,,
H,17,,,
H,18,,,
