Novel curcumin analogues with α,β-unsaturated ketone moiety and/or α,β-saturated ketone structure were synthesized from curcumin via alkylation at the central carbon and the phenolic hydroxy groups, and hydrogenation of α,β-unsaturated ketone moiety. The antiproliferative activities were tested in five human solid tumor cell lines in vitro. Most of the compounds exhibited increased antiprolifer...

Acetoacetyl-CoA synthetase (AACS) is a cytoplasmic enzyme that activates the ketone body acetoacetate for lipogenesis. Aacs is expressed in liver, thus this tissue produces and consumes ketone bodies. To understand this apparent paradox we studied the expression of Aacs in liver during the transition from fasting to feeding, and characterized the kinetic parameters of the human enzyme. We show ...

OBJECTIVE To evaluate the performance of a hand-held ketone sensor that is able to measure blood beta-hydroxybutyrate (beta-HBA) concentrations within 30 s in patients with diabetic ketoacidosis (DKA) and patients who attend a weight management clinic. RESEARCH DESIGN AND METHODS Two groups of patients were studied: 19 patients admitted with DKA and 156 patients attending a weight management ...

Two-dimensional metal-organic nanostructures based on the binding of ketone groups and metal atoms were fabricated by depositing pyrene-4,5,9,10-tetraone (PTO) molecules on a Cu(111) surface. The strongly electronegative ketone moieties bind to either copper adatoms from the substrate or codeposited iron atoms. In the former case, scanning tunnelling microscopy images reveal the development of ...

Abstract A pentasaccharide repeating unit corresponding to the cell wall O-antigen of Salmonella enterica O55 containing a rare sugar, 3-acetamido-3-deoxy-d-fucose has been synthesized as its p-methoxyphenyl glycoside using sequential stereoselective glycosylation strategy. suitably functionalized 3-azido-3-deoxy-d-fucose thioglycoside derivative was prepared in very good yield and used reactio...

The title compound, C(15)H(16)O(3), aggregates as hydrogen-bonded catemers progressing from each carboxyl to the ketone of a screw-related neighbor [O⋯O = 2.6675 (14) Å and O-H⋯O = 170°]. Two parallel centrosymmetrically related single-strand hydrogen-bonding helices proceed through the cell in the b-axis direction. The packing includes three inter-molecular C-H⋯O=C close contacts, involving bo...

Methyl indolenines (4a-c) and(5a-c) were prepared in high yield by a Fischer indole synthesis reaction of o,m-tolylhydrazine hydrochlorides (1a-b) with isopropyl methyl ketone (2) and 2-methylcyclohexanone (3) in acetic acid at room temperature. o,p- Nitrophenylhydrazines (1c-d) were reacted with 2-methylcyclohexanone (3) in acetic acid at reflux to give nitroindolenines (5d-e), while the attem...