Discovery of an in vitro and in vivo potent resorcylic lactone analog of LL-Z1640-2 as anti-inflammatory lead, II
摘要:
The potent in vitro lead compound, ER-803064 (2), a MEK1 and MEKK1 inhibitor inspired from natural product LL-Z1640-2 (f152A1), was further optimized to improve in vitro and in vivo potency. The modifications on C14 position led to discovery of the lead compounds 28 and 29, which regained full in vitro potency of f152A1 and showed higher in vivo potency by iv administration. (C) 2010 Elsevier Ltd. All rights reserved.
The potent in vitro lead compound, ER-803064 (2), a MEK1 and MEKK1 inhibitor inspired from natural product LL-Z1640-2 (f152A1), was further optimized to improve in vitro and in vivo potency. The modifications on C14 position led to discovery of the lead compounds 28 and 29, which regained full in vitro potency of f152A1 and showed higher in vivo potency by iv administration. (C) 2010 Elsevier Ltd. All rights reserved.
Biosynthesis of Vitamin B<sub>1</sub> in Yeast. Derivation of the Pyrimidine Unit from Pyridoxine and Histidine. Intermediacy of Urocanic Acid
作者:Johannes Zeidler、Brian G. Sayer、Ian D. Spenser
DOI:10.1021/ja030261j
日期:2003.10.1
Incorporation studies with 13C-, 15N-, and 2H-labeled substrates, followed by NMR analysis, show that the pyrimidine unit of thiamin (VitaminB1) originates from a C5N fragment, derived from C-2',2,N,C-6,5,5' of pyridoxol (Vitamin B6) and an N-C-N fragment derived from L-histidine. Urocanic acid serves as an intermediate on the route of the N-C-N fragment of histidine into the thiamin pyrimidine.