Lipase, isolated from Aspergillus niger, exhibits chemoselectivity towards hydrolysis of fatty acid esters and does not hydrolyse carbamates; this has been demonstrated with substrates such as 5 (N-methoxycarbonyl-N-ethoxycarbonylmethylamino)-2-aryl-2,4-dihydro-3H-1,2,4-triazol-3-ones.
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