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1. Chiral Brønsted Acid‐Catalyzed Asymmetric Reaction via Vinylidene Ortho‐Quinone Methides.

Author

Zhu, Xin‐Qi, Yang, Hai‐Yu, and Ye, Long‐Wu

Subjects
*BRONSTED acids, *MOLECULES, *RING formation (Chemistry)
Abstract

Vinylidene ortho‐quinone methides (VQMs) have been proven to be versatile and crucial intermediates in the catalytic asymmetric reaction in last decade, and thus have drawn considerable concentrations on account of the practical application in the construction of enantiomerically pure functional organic molecules. However, in comparison to the well established chiral Brønsted base‐catalyzed asymmetric reaction via VQMs, chiral Brønsted acid‐catalyzed reaction is rarely studied and there is no systematic summary to date. In this review, we summarize the recent advances in the chiral Brønsted acid‐catalyzed asymmetric reaction via VQMs according to three types of reactions: a) intermolecular asymmetric nucleophilic addition to VQMs; b) intermolecular asymmetric cycloaddition of VQMs; c) intramolecular asymmetric cyclization of VQMs. Finally, we put forward the remained challenges and opportunities for potential breakthroughs in this area. [ABSTRACT FROM AUTHOR]

Published
2024
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3. List of Contributors

Author

Abbas, Ghulam, primary, Adamowicz, Piotr, additional, Adan, Ana, additional, Agay, Nirit, additional, Al-Halabí, S., additional, Altun, Hatice, additional, Amini, Maryam, additional, Andersen, Monica L., additional, Andreassen, Cecilie Schou, additional, Anthony, James C., additional, Ardakani, Yalda Hosseinzadeh, additional, Aromatario, Mariarosaria, additional, Arun, Priti, additional, Atik, Anzari, additional, Atti, Anna Rita, additional, Baird, Alison L., additional, Balconi, Michela, additional, Ballóková, Anna Lukačišinová, additional, Bascarán, M.T., additional, Battagliese, Gemma, additional, Benaiges, Irina, additional, Bergen-Cico, Dessa, additional, Berrettini, Wade H., additional, Berro, Laís F., additional, Bertol, Elisabetta, additional, Bian, Jin-Song, additional, Bobes-Bascarán, M.T., additional, Bobes, J., additional, Bocarsly, Miriam E., additional, Bocca, Marie-Laure, additional, Bonafede, Roberta, additional, Borroto-Escuela, Dasiel O., additional, Bottoni, Edoardo, additional, Bousoño, M., additional, Bowen, Michael T., additional, Bramanti, Placido, additional, Buck, Kari J., additional, Buisman-Pijlman, Femke T.A., additional, Büttner, Andreas, additional, Calabrò, Rocco S., additional, Çamsari, Ulaş M., additional, Cappelletti, Simone, additional, Carbo-Gas, María, additional, Casadio, Paola, additional, Casadó-Anguera, Verònica, additional, Casadó, Vicent, additional, Ceccanti, Mauro, additional, Chang, Yong-Yuan, additional, Chang, Young-Tae, additional, Chiu, Meng-Chun, additional, Chiu, Nan-Ying, additional, Cho, Zang-Hee, additional, Chung, Yemina, additional, Ciallella, Costantino, additional, Cinosi, Eduardo, additional, Conigrave, Katherine M., additional, Coogan, Andrew N., additional, Coppola, Maurizio, additional, Cortés, Antoni, additional, Costa, Giulia, additional, Cox, Stephen, additional, Dafny, Nachum, additional, Das, Subhash, additional, Davis, Jonathan M., additional, De Matteo, Robert, additional, Demetrovics, Zsolt, additional, Demirkol, Apo, additional, Denovan-Wright, Eileen M., additional, di Giannantonio, Massimo, additional, Edgunlu, Tuba, additional, Elliott, Simon, additional, Enman, Nicole M., additional, Ensafi, Ali A., additional, Faccini, Marco, additional, Falls, Brian A., additional, Fang, Chiu-Ping, additional, Fan, Lir-Wan, additional, Farooq, Ahsana Dar, additional, Feingold, Daniel, additional, Ferraro, Luca, additional, Fialová, Daniela, additional, Filip, Malgorzata, additional, Findikli, Ebru, additional, Finocchiaro, Roberta, additional, Fiore, Paola A., additional, Font-Mayolas, Sílvia, additional, Fox, Jonah, additional, Fragou, Domniki, additional, Fu, Qiang, additional, Fuxe, Kjell, additional, Gahr, Maximilian, additional, García-Portilla, M.P., additional, George, Preeta, additional, Gil-Miravet, Isis, additional, Gorwood, Philip, additional, Gras, Maria Eugènia, additional, Gravielle, María Clara, additional, Griffiths, Mark D., additional, Haber, Paul S., additional, Hadad, Natalie A., additional, Hall, F. Scott, additional, Han, Doug Hyun, additional, Harding, Richard, additional, Hashmi, Rida, additional, Hassanian-Moghaddam, Hossein, additional, Hernández-Serrano, Olga, additional, Herrmann, Evan S., additional, Herzog, Thaddeus A., additional, Heydari-Bafrooei, Esmaeil, additional, Hirota, Kiichi, additional, Ho, Ming-Chou, additional, Howell, Leonard L., additional, Hsu, Wen-Yu, additional, Huang, Chieh-Liang, additional, Hughes, Robert N., additional, Hymel, Kristen A., additional, Hyun, Gi Jung, additional, Inoue, Koichi, additional, Islam, M. Mofizul, additional, Jamali, Bardia, additional, Jerzemowska, Grażyna, additional, Job, Martin O., additional, Johannessen, Jan Olav, additional, Johansen, Helen J., additional, Johnson, Matthew W., additional, Johnson, Patrick S., additional, Kang, Chang-Ki, additional, Karakaş-Çelik, Sevim, additional, Kharas, Natasha, additional, Kim, Young-Bo, additional, Knackstedt, Lori A., additional, Kokki, Hannu, additional, Kokki, Merja, additional, Konopka, Anna, additional, Kopcza, Kathleen, additional, Kouvelas, Dimitrios, additional, Kovatsi, Leda, additional, Kruse, Lauren C., additional, Lai, Chien-Wen, additional, Lapeyre-Mestre, Maryse, additional, Lauterbach, Edward C., additional, Le Strat, Yann, additional, Lee, Chen-Yi, additional, Lejoyeux, Michel, additional, Leone, Roberto, additional, Lev-Ran, Shaul, additional, Li, Ren-Hau, additional, Liang, Willmann, additional, Liu, Jiajun, additional, Liu, Ling-Jun, additional, Liu, Liwei, additional, Liu, Sheng-Wen, additional, Liu, Yu-Li, additional, Li, Zia, additional, Lobo, Daniela S.S., additional, Lou, Jingsheng, additional, Luigi Picci, Rocco, additional, Lupi, Matteo, additional, Lutz, Brianna M., additional, MacClurg, Kendra, additional, Magro, Lara, additional, Manchia, Mirko, additional, Maraz, Aniko, additional, Martin-Fardon, Rémi, additional, Martinotti, Giovanni, additional, Matzeu, Alessandra, additional, McLaughlin, Jay P., additional, McRae, Ian S., additional, Meyerhoff, Dieter J., additional, Miquel, Marta, additional, Mondola, Raffaella, additional, Moore, Robert, additional, Morelli, Micaela, additional, Moreno, Estefanía, additional, Mori, Tomohisa, additional, Murnion, Bridin, additional, Murphy, Kelle L., additional, Nagpure, Bhushan Vijay, additional, Naro, Antonino, additional, Neutel, C. Ineke, additional, Nielsen, Suzanne, additional, Nomura, Motoo, additional, Oliva, Francesco, additional, Olive, M. Foster, additional, Olivoni, Deanna, additional, Ouyang, Qin, additional, Pallesen, Ståle, additional, Palmaro, Aurore, additional, Papazisis, Georgios, additional, Paris, Jason J., additional, Park, Chan-A, additional, Park, Jeong Ha, additional, Pełka Wysiecka, Justyna, additional, Pearson-Dennett, Verity, additional, Phillips, Daniel E., additional, Pinna, Martina, additional, Plener, Paul L., additional, Ramoz, Nicolas, additional, Renshaw, Perry F., additional, Reyes, Beverly A.S., additional, Rivera, Alicia, additional, Robinson, Susan E., additional, Romolo, Francesco S., additional, Roohbakhsh, Ali, additional, Rouini, Mohammadreza, additional, Roussin, Anne, additional, Roussotte, Florence F., additional, Saiz, P.A., additional, Samochowiec, J., additional, Sanchis-Segura, Carla, additional, Santacroce, Rita, additional, Sato-Bigbee, Carmen, additional, Sayin, H. Umit, additional, Searles Quick, Veronica B., additional, Şenormanci, Ömer, additional, Seseña, Emmanuel, additional, Shamsizadeh, Ali, additional, Sheikholeslami, Behjat, additional, Shen, Bin, additional, Shibasaki, Masahiro, additional, Shillcutt, Samuel D., additional, Simola, Nicola, additional, Singh, Rachana, additional, Soraisham, Amuchou Singh, additional, Soto, Enrique, additional, Soyka, Michael, additional, Stepens, Ainars, additional, Sullman, Mark J.M., additional, Sun, Linlin, additional, Suzuki, Tsutomu, additional, Szabo, Attila, additional, Taba, Pille, additional, Tang, Hong Chai, additional, Tang, Tze-Chun, additional, Tao, Yuan-Xiang, additional, ten Velden Hegelstad, Wenche, additional, Thome, Johannes, additional, Thompson, Paul M., additional, Tien, Lu-Tai, additional, Tietz, Elizabeth I., additional, Todd, Gabrielle, additional, Tolcos, Mary, additional, Torkamanian, Meshkat, additional, Tsung, Jieh-Hen, additional, Tufik, Sergio, additional, Ullah, Mafaz, additional, Vaiano, Fabio, additional, Van Bockstaele, Elisabeth J., additional, Vandrey, Ryan, additional, Vazquez-Sanroman, Dolores, additional, Vega, Rosario, additional, Vitali, Mario, additional, Wai, Maria S.M., additional, Wang, Junmei, additional, Wang, Lirong, additional, Wang, Sheng-Chang, additional, Weibell, Melissa A., additional, Weinstein, Aviv, additional, White, Jason M., additional, Wilcox, Robert A., additional, Wilson, Hester, additional, Wouldes, Trecia A., additional, Wydra, Karolina, additional, Xie, Xiang-Qun, additional, Xie, Zhaojun, additional, Xi, Zheng-Xiong, additional, Xu, Wang, additional, Yang, Hai-Yu, additional, Yang, Peng, additional, Yechiam, Eldad, additional, Yew, David T., additional, Yong, Andrew W.S., additional, Zamani, Nasim, additional, Zoellner, Hans, additional, and Zuba, Dariusz, additional

Published
2016
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11. P63

Author

Yang, Hai-Yu, primary, Wu, Zhi-Yuan, additional, and Bian, Jin-Song, additional

Published
2014
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13. A study on relationship of nitric oxide, oxidation, peroxidation, lipoperoxidation with chronic chole-cystitis

Author

Jun-Fu, Zhou, Dong, Cai, You-Gen, Zhu, Jin-Lu, Yang, Cheng-Hong, Peng, and Yang-Hai, Yu

Subjects
Original Articles
Abstract

AIM:To study relationship of injury induced by nitric oxide, oxidation, peroxidation,lipoperoxidation with chronic cholecystitis.METHODS:The values of plasma nitric oxide (P-NO), plasma vitamin C (P-VC), plasma vitamin E (P-VE), plasma beta-carotene (P-beta-CAR), plasma lipoperoxides (P-LPO), erythrocyte superoxide dismutase (E-SOD), erythrocyte catalase (E-CAT), erythrocyte glutathione peroxidase (E-GSH-Px) activities and erythrocyte lipoperoxides (E-LPO) level in 77 patients with chronic cholecystitis and 80 healthy control subjects were determined, differences of the above average values between the patient group and the control group and differences of the average values between preoperative and postoperative patients were analyzed and compared, linear regression and correlation of the disease course with the above determination values as well as the stepwise regression and correlation of the course with the values were analyzed.RESULTS:Compared with the control group, the average values of P-NO, P-LPO, E-LPO were significantly increased (P0.01), and of P-VC, P-VE, P-beta-CAR, E-SOD, E-CAT and E-GSH-Px decreased (P0.01) in the patient group. The analysis of the linear regression and correlation showed that with prolonging of the course, the values of P-NO, P-LPO and E-LPO in the patients were gradually ascended and the values of P-VC,P-VE, P-beta-CAR, E-SOD, E-CAT and E-GSH-Px descended (P0.01). The analysis of the stepwise regression and correlation indicated that the correlation of the course with P-NO, P-VE and P-beta-CAR values was the closest. Compared with the preoperative patients, the average values of P-NO, P-LPO and E-LPO were significantly decreased (P0.01) and the average values of P-VC, E-SOD, E-CAT and E-GSH-Px in postoperative patients increased (P0.01) in postoperative patients. But there was no significant difference in the average values of P-VE, P-beta-CAR preoperative and postoperative patients.CONCLUSION:Chronic cholecystitis could induce the increase of nitric oxide, oxidation, peroxidation and lipoperoxidation.

Published
2002

18. [Toll-like Receptor Agonists in Radiation Protection].

Author

Guo J, Yang HY, and Long W

Subjects
Apoptosis, Humans, NF-kappa B, Radiation, Ionizing, Radiation Protection, Radiation-Protective Agents pharmacology, Toll-Like Receptors agonists
Abstract

Ionizing radiation causes the massive apoptosis of human tissue cells,leading to dysfunction of the gastrointestinal tract and hematopoietic system.Thus,high-efficiency,low-toxicity radiation protection drugs are urgently needed.Toll-like receptor agonists have been developed based on the anti-apoptotic mechanism of tumor cells in recent years,which exert their radioprotective effects by activating downstream pathways,mainly nuclear factor-κB.Here we elucidate several agonists of Toll-like receptors involved in radiation protection,with an attempt to inform the research and development of new radiation protection agents.

Published
2020
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19. [Expression of Peroxiredoxin-6 Gene in Patients with Acute Myeloid Leukemia and Its Clinical Significance].

Author

Yang HY, Ke B, Wen LD, Chen XX, and Liu Y

Subjects
Aged, Bone Marrow Cells, Humans, Leukocyte Count, Prognosis, Leukemia, Myeloid, Acute, Peroxiredoxin VI genetics, Peroxiredoxin VI metabolism
Abstract

Objective: To study the expression of Peroxiredoxin-6 (Prdx6) gene in elderly patients with acute myeloid leukemia (AML) and its clinical significance., Methods: The expression level of Prdx6 in bone marrow cells of 33 cases of AML, 8 cases of CML and 11 cases of other blood diseases was detected by PCR. The correlation of the abnormal expression of Prdx6 with patient age and blood routine parameters was further analyzed., Results: the expression level of Prdx6 in elderly patients with AML (≥60 years) was significantly lower than that in younger patients (＜60 years) (P＜0.05); the expression level of Prdx6 in low WBC (≤1×10 9 /L) group was lower than that in medium WBC (1-10×10 9 /L) group or high WBC (＞10×10 9 /L) group (P＜0.05); the proportion of WBC count (≤1×10 9 /L) in elderly patients with AML reached 38.5%, which was significantly higher than that in younger patients (5%) (P＜0.05); the overall survival (OS) rate of elderly patients was lower than that of younger patients (P＜0.05)., Conclusion: The expression of Prdx6 in elderly patients with AML is low, moreover, it relates with low value of WBC in peripheral blood, suggesting that it may be one of poor prognostic factors for the elderly patients with AML.

Published
2020
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20. 1-Hydroxymethyl-1-methylethan-aminium chloride.

Author

Li YF, Feng ML, Liu S, Yang HY, and Zhu HJ

Abstract

The asymmetric unit of the title compound, C(4)H(12)NO(+)·Cl(-), contains two independent ion pairs. Weak intra-molecular C-H⋯O and N-H⋯O hydrogen bonds result in the formation of three five-membered rings, which have envelope conformations. The crystal structure contains intermolecular O-H⋯Cl, N-H⋯O, N-H⋯Cl and O-H⋯O hydrogen bonds.

Published
2008
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21. [Hydroquinone inhibits NF-kappaB expression in human bone marrow stromal cells in vitro].

Author

Yang HY, Yang JG, Wang GH, and Yu K

Subjects
Adult, Bone Marrow Cells cytology, Cells, Cultured, Humans, Middle Aged, NF-kappa B genetics, NF-kappa B metabolism, Stromal Cells cytology, Transcription Factor RelA biosynthesis, Transcription Factor RelA genetics, Transcription Factor RelA metabolism, Bone Marrow Cells metabolism, Hydroquinones toxicity, NF-kappa B biosynthesis, Stromal Cells metabolism
Abstract

This study was aimed to investigate whether hydroquinone (HQ) can inhibit NF-kappaB expression activated by phorbol myristate acetate (PMA), and to explore the relationship between the mechanism and the hematology toxicity of benzene tentatively. The human bone marrow stromal cells (BMSC) were harvested by in vitro culture and their change of morphology were observed. The activity and protein expression of NF-kappaB p65 extracted from those BMSC were measured with immunohistochemistry and TransAM P65 kit. The results showed that in cells exposed to HQ, P65 transferred from cell nucleus to cytoplasma around cell nucleus and its concentration lowered by immunohistochemistry. And TransAM P65 kit assay revealed that HQ effects at different concentrations were distinctive at respective time. The detected parameters in 100 micromol/L HQ group were significantly different from control group after exposure for 72 hours. But the parameters at different time in micromol/L HQ group were not obviously different. It is concluded that hydroquinone can inhibit NF-kappaB activated by PMA in BMSCs culture. This kind of inhibitory action correlated with the concentration of HQ and exposure time.

Published
2006

22. [Recent advances of nasal natural killer/T-cell lymphoma].

Author

Liu Y, Yang HY, and Lu MZ

Subjects
Chromosome Aberrations, Combined Modality Therapy, Humans, Prognosis, Killer Cells, Natural pathology, Lymphoma, T-Cell etiology, Lymphoma, T-Cell genetics, Lymphoma, T-Cell pathology, Lymphoma, T-Cell therapy, Nose Neoplasms etiology, Nose Neoplasms genetics, Nose Neoplasms pathology, Nose Neoplasms therapy
Published
2005

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