3O0J:
reference: Boron-based phosphodiesterase inhibitors show novel binding of boron to PDE4 bimetal center., Freund YR, Akama T, Alley MR, Antunes J, Dong C, Jarnagin K, Kimura R, Nieman JA, Maples KR, Plattner JJ, Rock F, Sharma R, Singh R, Sanders V, Zhou Y, FEBS Lett. 2012 Sep 21;586(19):3410-4. doi: 10.1016/j.febslet.2012.07.058. Epub, 2012 Jul 25. PMID: 22841723

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