Results 81 to 90 of about 9,431 (256)

Solid‐Phase Synthesis of 1,3,5,6‐Tetra‐Substituted 3,5‐Dihydroimidazo[4,5‐c][1,2]Thiazin‐4(1 H)‐One 2,2‐Dioxide Derivatives

Journal of Heterocyclic Chemistry, Volume 62, Issue 9, Page 938-943, September 2025.
Through an efficient solid‐phase synthesis method, 32 different 1,3,5,6‐tetra‐substituted 3,5‐dihydroimidazo[4,5‐c][1,2]thiazin‐4(1H)‐one 2,2‐dioxide derivatives were synthesized. The derivative library, with a total of four diversities, showed an overall yield of 7%–32% over 8 steps.
Jimin Moon, Hyojin Lee, Sohee Kim, Taeho Lee   +3 more
wiley   +1 more source

One-step synthesis of pyridines and dihydropyridines in a continuous flow microwave reactor [PDF]

, 2013
The Bohlmann–Rahtz pyridine synthesis and the Hantzsch dihydropyridine synthesis can be carried out in a microwave flow reactor or using a conductive heating flow platform for the continuous processing of material. In the Bohlmann–Rahtz reaction, the use
Bagley, Mark C, Fusillo, Vincenzo, Jenkins, Robert L, Lubinu, M Caterina, Mason, Christopher   +4 more
core   +2 more sources

2-[1,1-Dioxo-2-(2,4,5-trifluorobenzyl)-2H-1,2-benzothiazin-4-yl]acetic acid

Acta Crystallographica Section E, 2012
In the title compound, C17H12F3NO4S, the heterocyclic thiazine ring adopts a half-chair conformation with the S and the N atoms displaced by −0.608 (3) and 0.105 (3) Å, respectively, from the mean plane ...
Changjin Zhu, Yanchun Yang, Youzhu Yu
doaj   +1 more source

Sinteza i biološka evaluacija nekih pirimidina, pirimido[2,1-b][1,3]tiazina i tiazolo[3,2-a]pirimidin derivata [PDF]

, 2006
4,6-Diamino-1H-pyrimidine-2-thione (1) was used for the preparation of the pyrimidine derivatives 2-5. Compound 5 was cyclized to produce pyrimido[2,1-b][1,3]thiazine derivatives 6, which was condensed with p-chlorobenzaldehyde to give compound 7.
AHMED H. SHAMROUKH, AYMN E. RASHAD, HAYAM H. SAYED   +2 more
core   +1 more source

Peripheral blood proteome biomarkers distinguish immunosuppressive features of cancer progression

Molecular Oncology, Volume 19, Issue 8, Page 2233-2248, August 2025.
Immune status significantly influences cancer progression. This study used plasma proteomics to analyze benign 67NR and malignant 4T1 breast tumor models at early and late tumor stages. Immune‐related proteins–osteopontin (Spp1), lactotransferrin (Ltf), calreticulin (Calr) and peroxiredoxin 2 (Prdx2)–were associated with systemic myeloid‐derived ...
Yeon Ji Park, Jae Won Oh, Hyewon Chung, Jung Won Kwon, Yi Rang Na, Kwang Pyo Kim, Seung Hyeok Seok   +6 more
wiley   +1 more source

Crystal structure of (1S,2S,5R)-5-acetylamino-4-oxo-2,3-diphenyl-1,3-thiazinan-1-ium-1-olate

Acta Crystallographica Section E: Crystallographic Communications, 2017
The asymmetric unit of the enantiomerically pure title compound, C18H18N2O3S, comprises two independent molecules (A and B) having almost identical conformations. When overlayed, the alignment–r.m.s. deviation value is 0.30 Å.
Hemant P. Yennawar, Duncan J. Noble, Lee J. Silverberg   +2 more
doaj   +1 more source

Assembling Hexahedral Supramolecular Nano‐Aggregates on Rice Wax Layer Matrices to Promote the Leaf Deposition and Bioavailability of Bactericides for Plant Protections

Advanced Science, Volume 12, Issue 30, August 14, 2025.
To address the problem of off‐target movement and low bioavailability of pesticides, two anisotropic supramolecular building units (BiTA18@β‐CD and BiTA18@γ‐CD) have been invented that can self‐assemble into nano‐sized hexagonal cuboids on the rice microcrystalline matrix. This manipulation realizes the enhanced utilization of bactericides for rice and
Run Yang, Jinghan Yang, Min Liu, Juan Liu, Peiyi Wang   +4 more
wiley   +1 more source

Tautomeric Equilibria Studies by Mass Spectrometry [PDF]

, 2008
Tautomerism in organic chemistry has been extensively studied in condensed phase by spectrometric methods, mainly by IR and NMR techniques. Mass spectrometry studies start 40 years ago but just recently it has been recognized the importance of the mass ...
Eduardo A. Castro, Jorge J. Furlong, Mercedes M. Schiavonni, Patricia E. Allegretti   +3 more
core   +1 more source

2,3-Diphenyl-2,3,5,6-tetrahydro-4H-1,3-thiazin-4-one. Corrigendum

Acta Crystallographica Section E: Crystallographic Communications, 2015
In the paper by Yennawar & Silverberg [Acta Cryst. (2014), E70, o133], the conformation of the thiazine ring was reported incorrectly.
Hemant P. Yennawar, Lee J. Silverberg
doaj   +1 more source

Elucidating the Fe(III) Directed 15‐Step Domino Inter‐ and Intramolecular Progressive Coordinative Oligomerization of a Heterocycle Aggregate

Aggregate, Volume 6, Issue 8, August 2025.
A domino reaction leading to the novel heterocyclic aggregate 2,9‐dihydrobenzo[b]cyclopenta[e][1,4]thiazine has been developed, with its mechanism elucidated by crystallography and ESI‐MS to reveal a 15‐step reaction sequence (the longest reported to date) involving intermolecular C‐C coupling and intramolecular expansion.
Kai‐Bin Chen, Ting‐Ting Wang, Zhi‐Wei Xu, Ning Tian, Jin Cai, Wen‐Yu Qiu, Bin Zhang, Zheng Yin, Bin Liu, Ming‐Hua Zeng   +9 more
wiley   +1 more source