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61.
Komuraiah Buduma Niranjana Kumar A Satya Srinivas KVN Kotesh Kumar J Srinivas Chinde Anand Kumar Domatti Yogesh Kumar Paramjit Grover Ashok Tiwari Feroz Khan 《Journal of heterocyclic chemistry》2021,58(11):2078-2089
Design, synthesis, and bioactivity evaluation of novel mannich bases ( 2a-2j ) and triazole-chalcone derivatives ( 7a-7k ) of Eugenol 1 were reported. Among all the derivatives tested for antiproliferative activity, di-amine manich derivative 2b (32.92 μM), and 4-methoxy chalcone triazole derivative 7d (33.05 μM) significantly inhibited HepG2 cell lines when compared to the standard doxorubicin (37.29 μM). Whereas most of the compounds such as diethylamine 2a (17.75 μM), (aminomethyl) methane diamine 2b (17.02 μM), and bis (chloromethyl) amine 2c (20.12 μM) showed moderate to better inhibition towards MCF-7 cell lines. The synthesized analogues were also tested for antidiabetic and antiobesity potentials. Compounds 2f (55.50%), 2c (54.34%), 7g (55.5%), and 2a (55.5%) have shown moderate inhibitory potentials toward intestinal α-glucosidase enzyme when compared to the standard Acarbose (72.86%). Likewise, compounds 7d (82.95%), 7f (76.19%), 7g (74.81%), 7e (74.81%), and 2g (72.50%) have shown significant to moderate inhibitory potentials toward Pancreatic lipase enzyme when compared to the standard orlistat (91.10%). ROS induces life-threatening diseases like diabetes, cancer, etc., and antioxidants play a major role in controlling their production. Compounds 2c (99.81%), 2i (99.80%), 2d (99.26%), 2g (98.79%), and 2f (98.42%) have shown significant antioxidant profiles in ABTS assay when compared to the standard Trolox (99.07%). Further, In silico Molecular docking and pharmacokinetic screening of the eugenol derivatives complemented the in vitro results indicating the drug likeness of the obtained active compounds. 相似文献
62.
Journal of Thermal Analysis and Calorimetry - The present work deals with transient droplet evaporation and ignition process of an isolated n-heptane droplet at high pressure. The... 相似文献
63.
Danny Q. Thach Zachary G. Brill Huck K. Grover Kenneth V. Esguerra Jordan K. Thompson Thomas J. Maimone 《Angewandte Chemie (Weinheim an der Bergstrasse, Germany)》2020,132(4):1548-1552
The ophiobolin sesterterpenes are notable plant pathogens which have recently elicited significant chemical and biological attention because of their intriguing carbogenic frameworks, reactive functionalities, and emerging anticancer profiles. Reported herein is a total synthesis of (+)-6-epi-ophiobolin A in 14 steps, a task which addresses construction of the synthetically challenging spirocyclic tetrahydrofuran motif as well as several other key stereochemical problems. This work demonstrates a streamlined synthetic platform to complex ophiobolins leveraging disparate termination modes of a radical polycyclization cascade for divergent elaboration and functionalization. 相似文献
64.
Nandi Swagata Grover Rhythm Kundu Debasis 《Multidimensional Systems and Signal Processing》2022,33(3):1045-1068
Multidimensional Systems and Signal Processing - In this paper, we consider a two-dimensional random amplitude chirp signal model. It is assumed that the additive error is independent and... 相似文献
65.
A stable and power controllable laser with larger than 17-dB output power range is presented. Based on this device, a novel optical amplifier with the power transit immune behaviors has been demonstrated. 相似文献
66.
Zhengxu HanPaul Grover Q.Kevin FangDerek A. Pflum Chris H. Senanayake 《Tetrahedron letters》2003,44(22):4195-4197
High diastereoselectivity (>94%) has been achieved in the phenylMgBr addition process to chlorophenyl aldimine derived from the new and sterically hindered triisopropylbenzene sulfinamide (TIPBSA) in the synthesis of a key intermediate of (S)-Cetirizine. Surprisingly, under the same reaction conditions, toluenesulfinamide derived chlorophenyl aldimine provided only 10% ee. 相似文献
67.
R. G. Pillay A. K. Rastogi A. K. Grover V. Balasubramanian P. N. Tandon 《Hyperfine Interactions》1988,40(1-4):413-416
The reported double transition in the series Ce(Fe1–xCox)2 for x<0.3 has been shown to be due to spin reorientation from Mossbauer measurements at57Fe. It is suggested that the competing interactions with randomly substitution of Fe by Co atoms causes a quasi random freezing which results in abrupt loss of magnetization. 相似文献
68.
Parshant Batham S B Roy Shailendra Kumar A K Pradhan A K Grover P Chaddah Ram Prasad N C Soni 《Pramana》1995,45(3):261-269
Results are presented for study of nonlinear magnetization of a sintered YBa2Cu3O7−y pellet of different thickness of a sample subjected to very low magnetic field. On cooling the sample belowT
c in zero field a change, in the oscillatory structure of harmonics in increasing dc field is observed in very low ac magnetic
field. The effect of finiteness of the sample on the oscillatory structure and on the hysteresis of harmonics is also studied.
The results are explained qualitatively. 相似文献
69.
22 days of error-second data were obtained from a DS-3 tributary of a 565 Mbit/s FOTS to predict the effect of a rate 0.99118 FEC code embedded in the DS-3 masterframe overhead. Using DS-3 masterframe parity to resolve errors within multiply-errored seconds, the code corrects all of the 1189 errors observed. There was no evidence for burstiness at the bit-by-bit timescale.<> 相似文献
70.
Polymers were successfully used in the packaging of waveguide-based photonic components in the area of fiber-to-waveguide coupling, waveguide die attachment, strain relief, and waveguide encapsulation. The application results of these polymers were described in this paper. 相似文献