Canonica L, Galliani G, Rindone B, Tollari S, Andreoni V, Galli E
Experientia. 1983 Nov 15;39(11):1273-5. doi: 10.1007/BF01990366.
The microbial transformation of the benzylisoquinoline alkaloid laudanosine by a strain of Pseudomonas putida gives a metabolite in which O-demethylation of 1 methoxyl group of ring C, and introduction of 1 ketonic oxygen at C9 and 1 phenolic oxygen at ring C have occurred. Also, O-methylcoripalline is formed in this transformation.