(2RS,3SR,10SR,11RS)-3,10-Diphen­oxy-18,21-dioxa-5,8-diaza­penta­cyclo­[20.4.0.02,5.08,11.012,17]hexa­cosa-1(26),12,14,16,22,24-hexa­ene-4,9-dione ethyl acetate hemisolvate

In the title compound, C34H30N2O6·0.5C4H8O2, there are two mol­ecules in the asymmetric unit and the structure is stabilized by C—H⋯O inter­actions. The two nonsolvent mol­ecules of the asymmetric unit are linked together by a weak C—H⋯O hydrogen bond. The ethyl acetate mol­ecule is present as a space filler and does not participate in the hydrogen-bonding network

5-Fluoro-6′H,7′H,8′H-spiro­[indoline-3,7′-pyrano[3,2-c:5,6-c′]di-1-benzopyran]-2,6′,8′-trione

In the title compound, C26H12FNO6, the central pyran ring and both benzopyran systems are nonplanar, having total puckering amplitudes of 0.139 (2), 0.050 (1) and 0.112 (2) Å, respectively. The central pyran ring adopts a boat conformation. The crystal structure is stabilized by C—H⋯O, N—H⋯O, N—H⋯F and C—H⋯π inter­actions

9-(Pent-4-en­yl)anthracene

In the title compound, C19H18, the anthracene system is almost planar, with a maximum deviation of −0.039 (1) Å. The structure is stabilized by C—H⋯π inter­actions. The pentene moiety is not planar and is twisted away from the attached anthracene system with a maximum torsion angle of 91.2 (1)°

(3E,5E)-3,5-Dibenzyl­idene-1-phenethyl­piperidin-4-one

In the title compound, C27H25NO, the piperidine ring adopts an envelope conformation with the N atom at the flap position. The two benzylidene-benzene rings are oriented at a dihedral angle of 8.5 (1)°. In the crystal, the mol­ecules are linked into centrosymmetric dimers by pairs of inter­molecular C—H⋯O hydrogen bonds. The dimers are connected via C—H⋯π inter­actions involving the phenyl rings

5-Chloro­spiro­[indoline-3,7′-6H,7H,8H-pyrano[3,2-c:5,6-c′]di[1]benzopyran]-2,6′,8′-trione

The asymmetric unit of the title compound, C26H12ClNO6, consists of two independent mol­ecules. The central pyran rings and both the 1-benzopyran ring systems are nearly planar in both mol­ecules [r.m.s. deviations of pyan rings = 0.0264 (1) and 0.0326 (1) Å for molecules A and B, respectively; r.m.s. deviations of benzopyran rings = 0.0439 (1) and 0.0105 (1) for molecule A, 0.0146 (1) and 0.0262 (1) Å for molecule B]. In the crystal, the molecules are linked by C—H⋯O, N—H⋯O and C—H⋯π inter­actions

Foot Function Index for Arabic-speaking patients (FFI-Ar) : translation, cross-cultural adaptation and validation study

Background: Foot Function Index (FFI) is a valid and reliable outcome measure, which is widely used to measure the foot and ankle functional level and disorders. Until now, no validated Arabic version of the FFI is available. This study was conducted at a tertiary care hospital in Riyadh, Saudi Arabia. The purpose of this project was to translate and adapt the FFI into Arabic and to evaluate its psychometric properties of validity and reliability. Methods: The study consisted of two phases. The first phase was the translation and cultural adaptation of the FFI to Arabic. The next phase involved, testing the psychometric properties of the Arabic version of the FFI on a sample of 50 consecutive participants which included internal consistency, test–retest reliability, floor and ceiling effects and construct validity. Results: The mean age of the study participants was 38 ± 12.94 years. Both the genders were evenly enrolled with 50% of the participants as male and 50% as female. Majority of them complained of plantar fasciopathy (32%) followed by pes planus (22%) and ankle sprain (18%). The scores of FFI-Ar were normally distributed, confirmed by a significant Shapiro–Wilk test. The mean value of FFI-Ar total score was 47.73 ± 19.85. There were no floor or ceiling effects seen in any of the subscales and total score. The internal consistency was good with the Cronbach’s alpha value of 0.882, 0.936 and 0.850 for the pain, disability and activity limitation subscales, respectively. The reproducibility of the FFI-Ar was analysed by intra-class correlation coefficient which revealed good to excellent test–retest reliability. A significant correlation was found between FFI-Ar and SF-36 and numeric rating scale (NRS) confirming its construct validity. Conclusion: The FFI-Arabic version showed good validity and reliability in patients with foot and ankle problems. This tool can be used in usual practice and research for analysing foot and ankle disorders in Arabic-speaking people

Multicomponent Domino Synthesis, Anticancer Activity and Molecular Modeling Simulation of Complex Dispirooxindolopyrrolidines

A series of spirooxindolopyrrolidine fused N -styrylpiperidone heterocyclic hybrids has been synthesized in excellent yield via a domino multicomponent protocol that involves one-pot three component 1,3-dipolar cycloaddition and concomitant enamine reactions performed in an inexpensive ionic liquid, namely 1-butyl-3-methylimidazolium bromide ([bmim]Br). Compounds thus synthesized were evaluated for their cytotoxicity against U-937 tumor cells. Interestingly; compounds 5i and 5m exhibited a better cytotoxicity than the anticancer drug bleomycin. In ddition; the effect of the synthesized compounds on the nuclear morphology of U937 FaDu cells revealed that treatment with compounds 5a–m led to their apoptotic cell death

Humoral Immunogenicity and Efficacy of a Single Dose of ChAdOx1 MERS Vaccine Candidate in Dromedary Camels

MERS-CoV seronegative and seropositive camels received a single intramuscular dose of ChAdOx1 MERS, a replication-deficient adenoviral vectored vaccine expressing MERS-CoV spike protein, with further groups receiving control vaccinations. Infectious camels with active naturally acquired MERS-CoV infection, were co-housed with the vaccinated camels at a ratio of 1:2 (infected:vaccinated); nasal discharge and virus titres were monitored for 14 days. Overall, the vaccination reduced virus shedding and nasal discharge (p = 0.0059 and p = 0.0274, respectively). Antibody responses in seropositive camels were enhancedby the vaccine; these camels had a higher average age than seronegative. Older seronegative camels responded more strongly to vaccination than younger animals; and neutralising antibodies were detected in nasal swabs. Further work is required to optimise vaccine regimens for younger seronegative camels

The mechanism of the isomerization of organosilicon cyanates to isocyanates

Isomerization of the cyanate (Me3Si)3CSi(CD3)2OCN in the molten state at 150°C gives the unrearranged isocyanate (Me3Si)3CSi(CD3)2NCO and the rearranged isocyanate (Me3Si)2[(CD3)2MeSi]CSiMe2NCO in a ratio of ca. 75/25, and isomerization in solution in Ph2O at 220°C gives the same products in a ratio of ca. 85/15. The occurrence of a significant amount of rearrangement is consistent with a mechanism involving initial ionization of the cyanate. In contrast, no rearrangement accompanies the isomerization in CCl4 catalyzed by ICl, indicating that ionization is not involved; this conclusion is supported by the observation that the isomerization of (Me3Si)2(PhMe2Si)CSiMe2OCN, in which the Ph group would provide anchimeric assistance to ionization, proceeds at a similar rate to that of (Me3Si)3CSiMe2OCN

Cholinesterase inhibitory activity and regioselective synthesis of spiropyrrolidinoindole integrated ferrocene hybrid heterocycles via multicomponent cycloaddition reaction

A novel spiroheterocyclic hybrid comprising several privileged structures comprising pyrrolidine, quinoxaline, indole and ferrocene moieties were synthesized in good yields in sustainable fashion using [Bmim]Br augmented four component cycloaddition process. A relatively less explored ylide prepared from quinoxalinone and L-tryptophan with diverse ferrocenyl derivatives in ionic liquids afforded spiropyrrolidinoindole tethered ferrocene hybrids. The reaction provides highly regioselective fashion thus created five new bonds and four adjoining stereocenter in single synthetic transformation, thus created with complete diastereomeric control. The cholinesterase inhibitory potency was performed for synthesized compounds against AChE/BChE enzymes. Among them, compound bearing with fluorine substituted heterocycles showed significant activity which is comparable activity with reference standard, galantamine