[L3 = 1-(4-methoxy-3,5-dimethyl-pyridin-2-yl)methyl)-4-methyl-1,4-diazepane] have been synthesized and characterized as the novel models for LPMOs. The molecular structures exhibit distorted square pyramidal geometry (τ, 0.183–0.388) as similar to LPMOs. The CuN (1.99–2.02 Å) bond distances of the model complexes are almost identical to those of native LPMOs enzyme (1.9–2.2 Å). The 1, 4-diazepane backbone and pyridine
溶菌
多糖单加氧酶(LPMO)是含
铜的单加氧酶,可利用双氧催化难降解
多糖的氧化裂解。
铜(II)配合物[Cu(L1)(H 2 O)ClO 4 ] ClO 4 1,[L1 = 4-甲基-1-[(
吡啶-2-基-甲基)]-1,4-二氮杂]] ; [Cu(
L2)(H 2 O)ClO 4 ] ClO 4 2,[
L2 = 4-甲基-1-[((2-(
吡啶-2-基)乙基)乙基] -1,4-二氮杂]和[Cu( L3)(H 2 O)ClO 4 ] ClO 4 3,[L3 = 1-(4-甲氧基-3,5-二甲基-
吡啶-2-基)甲基)-4-甲基-1,4-二氮杂]被合成并表征为LPMO的新模型。分子结构表现出扭曲的方锥几何形状(τ,0.183–0.388),类似于LPMO。
铜模型复合物的N(1.99–2.02Å)键距与天然LPMOs酶(1.9–2.2Å)的键距几乎相同。配合物的1,4-二氮杂骨架和
吡啶单元分别与LPMO的