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Ito, Yoshikatsu; Horie, Souta; Shindo, Yasuhiro . (2001). A Novel [2 + 2] Photodimerization of <i>N</i> -[( <i>E</i> )-3,4-Methylenedioxycinnamoyl]dopamine in the Solid State. Organic Letters, 3(15), 2411–2413. doi:10.1021/ol0162419 
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