The CCG-1423 structure (via SureChEMBL > PubChem CID 2726015 ) links back to US20090264533 assigned to the Regents of the University of Michigan (not the Trustees this time). However, the first public n2s appears in a 2007 paper from the Neubig group (PMID 17699722) that apparently precedes the US patent. However, the public connectivity produces another gotcha in that SureChEMBL automated structure extractions from WO documents with poor OCR can be patchy. It was therefore necessary to cross-check the INPADOC entry to establish the patent-family connection to WO2006104751 'Methods and compositions for modulating rho-mediated gene transcription' (with yet a different assignee of just the University of Michigan) despite there being no PubChem chemistry link.