3-Amino-5,5-dimethylhexanoic Acid. Synthesis, Resolution, and Effects on Carnitine Acyltransferases
作者:Ahsraf Saeed、Jeanie B. McMillin、Paul E. Wolkowicz、Wayne J. Brouillette
DOI:10.1021/jm00046a008
日期:1994.9
inhibition of individual carnitine acyltransferases may be useful in the therapy of diabetes and heart disease. Aminocarnitine (3) is a weak competitive inhibitor (K(i) = 4.0 mM) for carnitine acetyltransferase (CAT), although the N-acetyl derivative 4 is about 165 times more potent (K(i) = 0.024 mM) than 3. Compound 3 is also a potent competitive inhibitor for carnitine palmitoyltransferases 1 and 2 (CPT-1
个别肉碱酰基转移酶的选择性抑制可用于治疗糖尿病和心脏病。氨基肉碱(3)是肉碱乙酰基转移酶(CAT)的弱竞争抑制剂(K(i)= 4.0 mM),尽管N-乙酰基衍生物4的效力(K(i)= 0.024 mM)比3约强165倍。化合物3还是肉碱棕榈酰转移酶1和2(CPT-1和CPT-2)的有效竞争抑制剂(CPT-2的IC50 = 805 nM)。我们合成了3-氨基-5,5-二甲基己酸(7)及其N-乙酰基衍生物(8),作为缺少季铵正电荷的3和4的等排类似物。像3和4一样,化合物7和8是竞争性的CAT CAT,其效价差异很大,但在这种情况下,8(K(i)= 25 mM)的效力是7(K(i)= 2.5 mM)的10倍。R-(-)-7和S-(+)-7是CAT的立体选择性抑制剂(K(i)分别为1.9和9.2 mM)。外消旋体7是CPT-2的弱竞争抑制剂(K(i)= 20 mM),对CPT-1没有影响。这些结