background: efficient induction of fetal hemoglobin (hbf) is considered as an effective therapeutic approach in beta thalassemia. hbf inducer agents can induce the expression of γ-globin gene and produce high levels of hbf via different epigenetic and molecular mechanisms. thalidomide and sodium butyrate are known as hbf inducer drugs. material and methods : cd133 + stem cells were isolated fro...

Trifluoromethylated organic compounds, especially chiral quaternary alcohols bearing trifluoromethyl group are of important intermediates in drugs, agrochemicals and etc.An efficient epoxidation of β-CF3-β,β-disubstituted unsaturated ketones (6) has been developed with environmental benign hydrogen peroxide as the oxidant and F5-substituted chiral qua...

Alkylpalladium complexes are important intermediates in several industrially relevant catalytic reactions, such as the Mizoroki–Heck reaction, alkyl C–H activation and ethylene polymerization. β-elimination—of either a hydride (β-Η) or heteroatom (β-Χ)—is most common decomposition pathway for these intermediates; this can lead to desired it hinder reaction progress, and/or vinyl halide co-polym...

Cinnamomum longepaniculatum essential oil (CLEO) possesses antibacterial, anti-inflammatory, and antioxidant activities. However, CLEO shows volatilization poor solubility, which limits its application field. In this research, inclusion complexes of β-cyclodextrin (β-CD) with were produced, physicochemical properties characterized. Response surface methodology was used to obtain optimum prepara...

In this study, β-cyclodextrin(β-CD) supported, hydroxyapatite encapsulated γ-Fe2O3 (γ-Fe2O3@HAp@β-CD) was successfully prepared and evaluated as a solid-liquid phase transfer catalyst and also a molecular host system and nanoreactor for the nucleophilic ring-opening of epoxides in water for the preparation of β-azido alcohols, β-nitro alcohols, an...

Chi Weigela, thuộc họ Kim ngân (Caprifoliaceae) được sử dụng rộng rãi trong y học cổ truyền tại các nước châu Á. Các hợp chất saponin phân lập từ chi Weigela có nhiều hoạt tính sinh mạnh như kháng oxy hóa, viêm và ung thư. Nghiên cứu đã tạo cao chiết ethanol loài florida “Jean’s Gold” bằng phương pháp xuất hỗ trợ vi sóng. Hai tách dựa trên sắc ký hiện đại. Cấu trúc hóa của này xác định là olean...

The Widom–Rowlinson model (or the Area-interaction model) is a Gibbs point process in Rd with formal Hamiltonian defined as volume of ∪x∈ωB1(x), where ω locally finite configuration points and B1(x) denotes unit closed ball centred at x. also tuned by two other parameters: activity z>0 related to intensity inverse temperature β≥0 strength interaction. In present paper we investigate phase trans...

Two new spirostane glycosides, named polygokingiaside A (1) and B (2), 6 known (25 R)-26- O-( β-d-glucopyranosyl)-furost-5-en-3 β,22 α,26-triol 3- O-β-d-glucopyranosyl-(1→4)- β-d-galactopyranoside (3), S)-26- O-β-d-glucopyranosyl-(1→2)- β-d-glucopyranosyl-(1→4)- (4), (5), (23 S,25 R)-spirostan-5-en-3 β,23-dihydroxy-12-one-3- (6), (24 β,24-dihydroxy-12-one-3- (7), β-hydroxy-12-one-3- (8), were i...

In the present paper, we report crystal structures of four types ([A(1)H][A(2)H]Y, [A(1)H]3[A(2)H]Y2, A(1)H[A(2)H···A(2)]Y, and A(1)H[A(1)H···A(2)]Y) mixed salts containing sulfate anion (Y = SO42−) amino acids A, i.e., sarcosine (Sar), dimethylglycine (DMG), betaine (Bet), β-alanine (β-Ala), l-proline (l-Pro): (β-AlaH)(DMGH)SO4·2H2O (I), (β-AlaH)(BetH)SO4 (II), (β-AlaH)(l-ProH)SO4 (III), (BetH...