https://pubs.rsc.org/en/content/articlepdf/2019/NP/C8NP00092A

Marine natural products.

Dietary phenolics: chemistry, bioavailability and effects on health.

Glacial melting in the Tibetan Plateau affects the water resources of millions of people. This study finds that—partly owing to changes in atmospheric circulations and precipitation patterns—the most intensive glacier shrinkage is in the Himalayan region, whereas glacial retreat in the Pamir Plateau region is less apparent.

Different glacier status with atmospheric circulations in Tibetan Plateau and surroundings

Transition-Metal-Catalyzed C−S, C−Se, and C−Te Bond Formation via Cross-Coupling and Atom-Economic Addition Reactions

Chem. Pharm. Bull.(オピニオン)

The Gravity Recovery and Climate Experiment (GRACE) satellite mission provides measurements of Earth’s static and time-variable gravity fields with monthly resolution. In this study, changes of water storage in northwestern China were determined by GRACE monthly gravity field data obtained from 2003 to 2010. Comparisons of water storage change (WSC) simulated by a four-dimensional assimilation model (Noah) and observed by GRACE revealed similar patterns of change and a correlation coefficient of 0.71 . Trend analysis indicated significant changes in the spatiotemporal variation of WSC in northwestern China during the 8-year study period, which were stronger in the east than in the west and more pronounced in the south than in the north. The most pronounced increase in water storage occurred in Gansu and Qinghai provinces, but, overall, water storage increased by 0.61 mm/a over northwestern China during the study period. Clear seasonal variations of WSC and precipitation were found, because glacial meltwater and precipitation are the main sources of water in the hydrosphere; meanwhile, the distributions of glaciers and permafrost also affect the spatial distribution of WSC.

/pdf/evaluation-of-water-storage-change-of-inland-cryosphere-in-cmbukw8nrj.pdf

Evaluation of Water Storage Change of Inland Cryosphere in Northwestern China

HPLC simultaneous determination of arbutin, chlorogenic acid and 6'-O-caffeoylarbutin in different parts of Vaccinium dunalianum Wight.

Chemical investigation of the whole plants of Phyllanthus cochinchinensis (Euphorbiaceae) led to the isolation of three new phenolic glycosides, phyllanthuosides A-C, together with 12 known compounds. Their structures were established on the basis of extensive spectroscopic analysis and chemical methods. Among them, phyllanthuosides A and B are two of the rare phenolic glycosides, featuring with a C6-C3-C6 skeleton. The absolute configurations of phyllanthuosides A and B were established by calculated electric circular dichroism (ECD) using time dependent density functional theory (TDDFT). The isolates were also tested for their cytotoxicity and antimicrobial activity.

/pdf/new-phenolic-glycosides-from-phyllanthus-cochinchinensis-3nvldme98q.pdf

New phenolic glycosides from Phyllanthus cochinchinensis

Phytochemical investigation of the rhizomes of Panax japonicus C. A. Meyer (Araliaceae) resulted in the isolation of two new dammarane-type triterpenoid saponins, yesanchinoside R1 (1) and yesanchinoside R2 (2), together with one new natural product, 6'''-O-acetylginsenoside Re (3). In addition, 25 known compounds, including 23 triterpenoid saponins, 426, beta-sitosterol 3-O-beta-D-glucopyranoside (27), and ecdysterone (28), were also identified. The known saponins 12, 15, and 1822 were reported for the first time from the title plant. Their structures were elucidated on the basis of detailed spectroscopic analyses, including 1D- and 2D-NMR techniques, as well as acidic hydrolysis.

New Dammarane‐Type Saponins from the Rhizomes of Panax japonicus

NSFC [21002105]; 973 Program of Ministry of Science and Technology of P. R. China [2011CB915503]; Fourteenth Candidates of the Young Academic Leaders of Yunnan Province [2011CI044]; West Light Foundation of the Chinese Academy of Sciences; Korean Chemical Society

http://koreascience.or.kr:80/article/JAKO201408439034660.pdf

Min Xu

Papers

Evaluation of Water Storage Change of Inland Cryosphere in Northwestern China

HPLC simultaneous determination of arbutin, chlorogenic acid and 6'-O-caffeoylarbutin in different parts of Vaccinium dunalianum Wight.

New phenolic glycosides from Phyllanthus cochinchinensis

New Dammarane‐Type Saponins from the Rhizomes of Panax japonicus

A New Phloroglucinol Glucoside from the Whole Plants of Glochidion eriocarpum