Isoxazole group directed Rh(iii)-catalyzed alkynylation using TIPS-EBX
作者:Sukanya Das、Tanmoy Datta、Md. Abbasuddin Sk、Brindaban Roy、Raj K. Nandi
DOI:10.1039/d4ob00797b
日期:——
A highly effective isoxazole directed ortho C–H alkynylation has been developed. Rhodium(III) catalyzed direct di-(and/or mono) alkynylation using a hypervalent iodine reagent (TIPS-EBX) is reported. The reaction proceeds with a wide substrate scope under benign conditions. Preliminary mechanistic studies support this chelation assisted C–H alkynylation.
一种高效的异恶唑定向邻位C-H 炔基化反应已被开发出来。据报道,使用高价碘试剂 (TIPS-EBX) 进行铑 ( III ) 催化的直接二(和/或单)炔基化。该反应在良好的条件下以广泛的底物范围进行。初步机制研究支持这种螯合辅助的 C-H 炔基化。
Bis- N -nitroso-caged nitric oxides: photochemistry and biological performance test by rat aorta vasorelaxation
Three new caged nitric oxides (NOs)-BNN3, BNN5Na, and BNN5M-were tested for biological use. BNNs have a strong ultraviolet (UV) absorption band (lambda(max): 300 nm, epsilon: 13.5 mM(-1) cm(-1)) extended to 420 nm and produce NO upon irradiation with 300-360 nm light in quantum yields about 2. A photoexcited BNN molecule yields two NOs with time constants of less than 10 ns for phase 1 and less than 20 mu s for phase 2 at 37 degrees C, suggesting usefulness of BNNs for measuring in vivo and in vitro fast NO reactions. Upon irradiating with UV light, caged nitric oxides-loaded rat aortic strips maintained in a state of active tonic contraction effectively relaxed (<3 mu M BNN5M loading solution concentration). BNN3 is incorporated in the lipid membrane. BNN5Na, insoluble in organic solvents but water soluble, localizes in the water phase. BNN5M, is muscle-cell-permeable and hydrolysed to BNN5Na to remain in cytosol. BNNs were thermally stable and demonstrated no observable toxicity. (C) 1999 Elsevier Science Ltd. All rights reserved.
Methods and compositions for regulating biofilm development
申请人:NewSouth Innovations Pty Limited
公开号:EP2351828B1
公开(公告)日:2017-10-18
A GNRH ANTAGONIST FOR USE IN THE TREATMENT OF A WOMEN AFFECTED WITH POLYCYSTIC OVARY SYNDROME
申请人:Institut National de la Santé et de la Recherche
Médicale
公开号:EP3600373A1
公开(公告)日:2020-02-05
METHOD AND DEVICE FOR TREATING BURSITIS
申请人:Jacques Danniel
公开号:US20080254107A1
公开(公告)日:2008-10-16
The present invention relates to a method for treating a subject for a condition or inflammation associated with oedema, excess body fluids or oedema and excess body fluids, or for treating a subject for an abscess, boil, blister or cyst. The method comprises applying to the skin surface covering a body part or region affected by said condition, inflammation, abscess, boil, blister or cyst a composition capable of transdermally attracting fluids from the body part or region or its proximity, wherein said composition comprises at least one adsorptive or absorptive agent, and leaving said composition in contact with the skin for sufficient time to allow said composition to transdermally absorb or adsorb at least a portion of the body fluids from said body part or region. The present invention also relates to compositions for absorbing or adsorbing fluids from a body part or region, and which are capable of transdermally attracting fluids from body parts or regions or their proximity.