Genokhova, N. S. published the artcileSynthesis of metallic complexes of 1,19-dimethyloctadehydrocorrins with electron acceptor β-substituents, SDS of cas: 26187-28-0, the publication is Zhurnal Obshchei Khimii (1977), 47(1), 121-9, database is CAplus.
I (M = Co, Ni, R = Me, CH2CO2H, R’ = CH2CH2CO2H; R = CO2Et, CN, R’ = Me) were prepared by the oxidative cyclization of hexamethylbiline derivatives in the presence of Ni and Co ions. The hexamethylbiline derivatives were also prepared The complexes and the ligands were characterized by electronic and NMR spectra.
Zhurnal Obshchei Khimii published new progress about 26187-28-0. 26187-28-0 belongs to nitriles-buliding-blocks, auxiliary class Pyrrole,Nitrile, name is 2,4-Dimethyl-1H-pyrrole-3-carbonitrile, and the molecular formula is C7H8N2, SDS of cas: 26187-28-0.
Referemce:
https://en.wikipedia.org/wiki/Nitrile,
Nitriles – Chemistry LibreTexts