Abstract: The present disclosure relates to the field of medicinal chemistry, and specifically to the use in the inhibition of tumor proliferation activity of ester derivatives of brefeldin A represented by Formula (I). The new compounds provided herein are prominent in the prevention or treatment of hyperproliferative diseases, including liver cancer, leukemia, breast cancer, colon adenocarcinoma, gastric cancer, lung cancer, Bart's esophageal cancer, cervical cancer, pancreatic cancer, endometrial cancer, bone cancer, lymphoma, kidney cancer, brain cancer, nerve cancer, nasopharyngeal cancer, oral cancer and colorectal cancer, and have the potential to be developed as novel antitumor agents.

Abstract: Provided are a phenylethanoid glycoside extract from the plant A. ilicifolius L., a preparation method thereof, and its use as an anti-liver injury medicament. The preparation method of the phenylethanoid glycoside extract comprises following steps: pulverizing dried whole plant Acanthus ilicifolius L. and passing through 20-30 mesh sieve to obtain Acanthus ilicifolius L. powder, adding 50%-95% ethanol solution whose mass is 8-20 times of the powder, soaking and extracting under reflux, filtering and collecting extract of the powder, and extracting a filter residue under reflux with 50%-95% ethanol solution whose mass is 8-10 times of the filter residue and collecting extract of the filter residue, combining, concentrating and subjecting to macroporous resin column chromatography, eluting successively by 10%, 30% and 50% ethanol solutions for four column volumes, respectively, collecting fraction eluted by the 50% ethanol solution and drying to obtain the phenylethanoid glycoside extract.

Abstract: Disclosed is a snap-on quick-release lock mechanism for an unmanned aerial vehicle, including: a lock plate; a lock base; and a handle. The lock base is provided with a rotatable connecting member, the lock base is connected to the handle through the connecting member, and the handle is connected to the lock plate by snapping.

Abstract: The present disclosure relates to the field of medicinal chemistry, and specifically to brefeldin A derivatives represent by Formula (I) and its use in the inhibition of tumor proliferation activity. The new compounds provided herein are prominent in the prevention or treatment of hyperproliferative diseases, including liver cancer, leukemia, breast cancer, colon adenocarcinoma, lung cancer, Bart's esophageal cancer, gastric cancer, cervical cancer, pancreatic cancer, kidney cancer, endometrial cancer, nasopharyngeal cancer, bone cancer, lymphoma, brain cancer, nerve cancer, oral cancer and colorectal cancer, and have the potential to be developed as novel antitumor agents.

Abstract: Provided is a lactam compound, a tautomer, a stereoisomer, a racemate, a nonequal mixture of enantiomers, a geometric isomer, a solvate, a pharmaceutically acceptable salt thereof, or a solvate of the salt of the compound, and a pharmaceutical composition containing the compound. Also provided are the use of such compounds and their pharmaceutical compositions as drugs, especially as antiviral drugs.

Abstract: The present invention provides alkaloids with formula I, II, III, IV, or V and their pharmaceutically acceptable salts, their preparation and their uses as antivirus drugs, for example, for treatment of HSV-1 infection. The alkaloids with formula I were isolated from the fermentation of marine fungus Scopulariopsis sp. (TA01-33) by means of column chromatography, such as positive phase silica gel column chromatography, etc. Alkaloids with formula II, III, IV and V were semisynthesized from compounds with formula I.

Abstract: Provided herein are quinolinone derivatives and their uses as antiviral drugs, for example, for treatment of HSV-1 infection. Also provided herein are pharmaceutically acceptable compositions comprising the quinolinone derivatives and the uses of the composition in the treatment of diseases caused by HSV-1 virus.

Abstract: Provided is a lactam compound, a tautomer, a stereoisomer, a racemate, a nonequal mixture of enantiomers, a geometric isomer, a solvate, a pharmaceutically acceptable salt thereof, or a solvate of the salt of the compound, and a pharmaceutical composition containing the compound. Also provided are the use of such compounds and their pharmaceutical compositions as drugs, especially as antiviral drugs.

Abstract: Provided herein are quinolinone derivatives and their uses as antiviral drugs, for example, for treatment of HSV-1 infection. Also provided herein are pharmaceutically acceptable compositions comprising the quinolinone derivatives and the uses of the composition in the treatment of diseases caused by HSV-1 virus.

Abstract: The present invention provides alkaloids with formula I, II, III, IV, or V and their pharmaceutically acceptable salts, their preparation and their uses as antivirus drugs, for example, for treatment of HSV-1 infection. The alkaloids with formula I were isolated from the fermentation of marine fungus Scopulariopsis sp.(TA01-33) by means of column chromatography, such as positive phase silica gel column chromatography, etc. Alkaloids with formula II, III, IV and V were semisynthesized from compounds with formula I.

Abstract: The present invention provides high potency 3,3?-diindolylmethane (DIM) and analogue compounds as antifouling agents. The present invention further provides methods of preventing or reducing settlement and/or fouling of marine fouling organisms on surfaces of submerged objects by coating the surfaces with the 3,3?-diindolylmethane (DIM) and analogue compounds provided.

Abstract: The present invention provides high potency 3,3?-diindolylmethane (DIM) and analogue compounds as antifouling agents. The present invention further provides methods of preventing or reducing settlement and/or fouling of marine fouling organisms on surfaces of submerged objects by coating the surfaces with the 3,3?-diindolylmethane (DIM) and analogue compounds provided.