PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 28654284-2 2017 The radical possesses four mPEG-3 groups replacing four methyl groups in the tert-butyl groups at the 3- and 6-positions of 1,3,6,8-tetra-tert-butyl carbazyl (TTBC). ttbc 159-163 paternally expressed 3 Mus musculus 27-33 28654284-3 2017 This structure is designed to mitigate the rapid decomposition of the radical via intramolecular 1,5-hydrogen atom transfer (1,5-HAT) that was observed in its constitutional isomer 1-H with four mPEG-3 groups in the vicinity of the nitrogen-centered radical (1- and 8-positions of TTBC). ttbc 281-285 paternally expressed 3 Mus musculus 195-201