The anti-HIV peptide T20 is able to inhibit the syncytia formation between CHO-WT and HeLa CD4+cells. We found that several sera of HIV-infected patients have the capacity to block the inhibition of fusion by T20. Suggesting that these sera may contain antibody which can block T20 access and pre...

[(tert-Butyldimethylsilyl)oxy]methanethiol [HSCH2OSiMe2Bu-t] is a nucleophilic reagent for introduction of a protected bivalent sulfur; this reagent is complementary to the electrophilic reagent p-MeC6H4SO2SCH2OSiMe2Bu-t. The thiol is prepared by the action of HSLi on tert-butyl(chloromethoxy)di...

The profiling of fatty acids (FAs) or sterols has been applied in clinical studies, but still needs to be improved to enable their simultaneous quantification. Moreover, little progress has been made in determining the levels of FAs and sterols in human saliva in a single run. In this study, gas...

We report the application of reversible addition-fragmentation chain transfer (RAFT) polymerization using poly(dimethylsiloxane) (PDMS) chain transfer agents toward the synthesis of a variety of diblock copolymers containing tert-butyldimethylsilyl methacrylic (MASi) monomer units. The methodolo...

Allylation and benzylation at the α-carbon of α-methylated acetoacetyl (2-methyl-3-oxobutanoyl) group incorporated into the 2-OH of methyl 6-deoxy-3,4-O-(tert-butyldimethylsilyl)-α-d-glucopyranoside provided the respective α,α-differentially alkylated acetoacetyl derivatives, both with high...

Phenolic tert-butyldimethylsilyl (TBDMS) ethers can be deprotected to yield phenols in excellent yield using tailor-made ionic liquid [dihexaEGim][OMs] (dihexaEGim = dihexaethylene glycolic imidazolium salt) as an organic catalyst with alkali-metal fluoride in tert-amyl alcohol. On the contrary,...

We have developed four new dyes for DSSCs with a tert-butyldimethylsilylether in order to test their physical and photovoltaic properties. These dyes consist of a novel donor based on a functionalized N,N-dialkylaniline, a heteroaromatic π-conjugated spacer, such as thiophene or benzothiadiazol...

Crystal structures of heptakis(2,6-di-O-tert-butyldimethylsilyl)cyclomaltoheptaose, heptakis(2-O-methyl-3,6-di-O-tert-butyldimethylsilyl)cyclomaltoheptaose and heptakis(2-O-methyl)cyclomaltoheptaose were determined from X-ray diffraction patterns obtained for single crystals of the title compoun...

A mild, efficient and rapid protocol the deprotection of alcoholic TBDMS ethers using PVP-1 as catalyst in methanol, the procedure of deprotection of various TBDMS ethers were found to be very convenient, easy work-up, high yielding.

6I,6IV-Di-O-[α-l-fucopyranosyl-(1→6)-2-acetamido-2-deoxy-β-d-glucopyranosyl]-cyclomaltoheptaose (βCD) {6I,6IV-di-O-[α-l-Fuc-(1→6)-β-d-GlcNAc]-βCD (5)} and 6-O-[α-l-fucopyranosyl-(1→6)-2-acetamido-2-deoxy-β-d-glucopyranosyl]-βCD {6-O-[α-l-Fuc-(1→6)-β-d-GlcNAc]-βCD (6)} were chemic...

The stereoselective synthesis of 2-deoxy-α-l-glycosides by addition of various acceptors to 4-O-acetyl-3-O-tert-butyldimethylsilyl-l-rhamnal promoted by triphenylphosphine–hydrogen bromide is developed.

H2SO4-silica-promoted removal of benzylidene, isopropylidene, trityl and tert-butyldimethylsilyl groups from sugar derivatives was accomplished by following an ‘on-column’ protocol in a virtually waste-free condition.

The synthesis of (2RS)-1-(5-methoxy-1H-indol-4-yloxy)-3-(2-(2-methoxyphenoxy)ethylamino)propan-2-ol and (2RS)-1-(7-methoxy-1H-indol-4-yloxy)-3-(2-(2-methoxyphenoxy)ethylamino)propan-2-ol and its enantiomers, analogs of 1-(1H-indol-4-yloxy)-3-(2-(2-methoxyphenoxy)ethylamino)propan-2-ol ((RS)-9) i...

2-Methoxy-2-phenyl acetic acid and 2-phenoxy-2-phenylpropionic acid were resolved by the parallel kinetic resolution of their corresponding pentafluorophenyl active ester using a quasi-enantiomeric combination of lithiated oxazolidinones.

(3-{[4-(Thien-3-yl-methoxy)phenoxy]methyl}thiophene) (TMPMT) was synthesized via the reaction of 3-bromomethylthiophene with hydroquinone and characterized by nuclear magnetic resonance (NMR) and Fourier transform infrared spectroscopy (FTIR). Electrochemical copolymerization of TMPMT with thiop...

Single- or double-oxa-Michael addition of ynones with various alcohols was achieved at room temperature. (E)-3-Alkoxyprop-2-en-1-ones and 3,3-dialkoxypropan-1-ones were efficiently synthesized by time-controlling approach. This protocol has advantages of wide range of substrates, no transition m...

The Raman spectroscopic data in the range 500–1800 cm−1 for a series of 15 rare earth double-deckers with tervalent rare earths MIII[Pc(MeOPhO)8]2 (M = Y, La, …, Lu, except Ce, Pr and Pm), reduced state HPr[Pc(MeOPhO)8]2 and intermediate-valent cerium Ce[Pc(MeOPhO)8]2 have been collected using...

A new series of 2-(4-((5-(4-bromophenyl)-1, 3, 4-oxadiazol-2-yl)methoxy)phenyl)-1H-benzo[de] isoquinoline-1,3(2H)-dione derivatives (6a-l) have been synthesized by using conventional method. All the newly synthesized compounds were evaluated for their antibacterial and antifungal activity four b...

The serotonin2A (5-HT2A) receptor is implicated in the pathophysiology of schizophrenia and mood disorders, and in vivo studies of this receptor would be of value in studying the pathophysiology of these disorders and in measuring the relationship of clinical response to receptor occupancy for 5...

The new compound of 5-(2-Methoxy-4-(prop-1-en-1-yl)phenoxy)pyrazine-2,3-dicarbonitrile was synthesized and structure was characterized by using XRD, FT-IR and NMR techniques. All theoretical computations were calculated by using density functional theory (DFT) B3LYP method with the help of 6-31 ...