Propose a structure for Compound X, which has M+ = 120 and (M + 2) = 122 of approximately equal intensity in its mass spectrum and has the following 13C NMR spectral data
Broadband decoupled 13C NMR: 32.6, 118.8, 134.3 d
DEPT-90:0 134.3 d
DEPT-135: positive peaks at 134.4 d; negative peaks at 32.6, 118.8 d