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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 δ
DEPT-90:
134.3 δ
DEPT-135:
positive peaks at 134.3 δ;negative peaks at 32.6,118.8 δ
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