Synthesis, in Vitro Evaluation and Cocrystal Structure of 4-Oxo-[1]benzopyrano[4,3-<i>c</i>]pyrazole <i>Cryptosporidium parvum</i> Inosine 5′-Monophosphate Dehydrogenase (<i>Cp</i>IMPDH) Inhibitors
作者:Zhuming Sun、Jihan Khan、Magdalena Makowska-Grzyska、Minjia Zhang、Joon Hyung Cho、Chalada Suebsuwong、Pascal Vo、Deviprasad R. Gollapalli、Youngchang Kim、Andrzej Joachimiak、Lizbeth Hedstrom、Gregory D. Cuny
DOI:10.1021/jm501527z
日期:2014.12.26
Cryptosporidiuminosine5′-monophosphatedehydrogenase (CpIMPDH) has emerged as a therapeutic target for treating Cryptosporidium parasites because it catalyzes a critical step in guanine nucleotide biosynthesis. A 4-oxo-[1]benzopyrano[4,3-c]pyrazole derivative was identified as a moderately potent (IC50 = 1.5 μM) inhibitor of CpIMPDH. We report a SAR study for this compound series resulting in 8k
meso-Tetrakis(4-chlorocoumarin-3-yl)porphyrins were prepared by condensation of corresponding 4-chlorocoumarin-3-carboxaldehydes and pyrrole in the presence of trifluoro acetic acid (TFA) in dichloromethane followed by oxidation with 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (DDQ). These porphyrins exhibited the atropisomerism due to ortho substituent of meso aryl groups. The atropisomers of meso-tetrakis(4-chl
内消旋-四(4-氯香豆素-3-基)卟啉是通过在二氯甲烷中在三氟乙酸(TFA)存在下缩合相应的4-氯香豆素-3-羧醛和吡咯,然后用2,3-二氯-氧化制备的。 5,6-二氰基-1,4-苯醌(DDQ)。这些卟啉由于内消旋芳基的邻位取代而表现出阻转异构性。分离并通过1 H-nmr光谱鉴定了内消旋-四(4-氯-6-甲基香豆素-3-基)卟啉的阻转异构体。合成了这些卟啉的锌配合物,并通过ms,1 H nmr,ir和uv-vis光谱进行了表征。
Gangadhar, N.; Krupadanam, G. L. David, Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1998, vol. 37, # 7, p. 686 - 688
作者:Gangadhar, N.、Krupadanam, G. L. David
DOI:——
日期:——
Mulwad; Hegde, Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 2009, vol. 48, # 11, p. 1558 - 1564