Results 51 to 60 of about 225,386 (346)
Synthesis of the isoquinoline alkaloid, crispine C [PDF]
, 2012 The first total synthesis of the isoquinoline alkaloid, crispine C is described in seven steps using a Henry reaction and the Pictet–Gams variant of the Bischler–Napieralski reaction to effect the key ...
Adele Blair +42 more
core +1 more source
Advanced Science, EarlyView.XLP mitigated CPT11 mucositis by suppressing GUS‐expressing microbes, notably L. reuteri, and diminishing bacterial GUS activity, consequently reducing SN38 accumulation to protect the intestinal epithelium. This preservation of the mucosal stem cell niche enabled rapid regeneration of secretory lineages such as mucin‐producing goblet cells, which ...
Bei Yue +15 more
wiley +1 more source
Angewandte Chemie, EarlyView.Concise total syntheses of five leuconoxine alkaloids have been achieved using a pyrrole‐centered strategy, which features a newly developed palladium/norbornene‐catalyzed pyrrole double C─H functionalization method, a divergent late‐stage oxidative dearomatization tactic, and no use of protecting groups.
Xin Liu +5 more
wiley +2 more sources
Catalytic asymmetric synthesis of the alkaloid (+)-myrtine [PDF]
, 2008 A new protocol for the asymmetric synthesis of trans-2,6-disubstituted-4-piperidones has been developed using a catalytic enantioselective conjugate addition reaction in combination with a diastereoselective lithiation–substitution sequence; an efficient
Adriaan J. Minnaard +62 more
core +1 more source
Molecules, 2011 Based on an established common pharmacophore of HIV-1 non-nucleoside reverse transcriptase inhibitors (NNTTIs), a series of quinolin-2-one derivatives were synthesized and assayed for their in vitro activities against HIV-1 reverse transcriptase (RT) for
Pi Cheng +6 more
doaj +1 more source
HortScience, 2021 Goldenseal (Hydrastis canadensis L.) is a medicinal forest herb native to Appalachia. Its roots and rhizomes are used as an antimicrobial and for the treatment of intestinal ailments.
Grady H. Zuiderveen +2 more
doaj +1 more source
Advanced Science, EarlyView.As a plant‐derived flavonoid, apigenin directly targets PRDX6 to inhibit its PLA2 activity, blocking HSPA8 activation and disturbing its interactions with ATM and p38MAPK in senescent cells. By dampening wide spectrum expression of the SASP, apigenin prevents loss of tissue homeostasis, improves organ function, and alleviates multiple age‐related ...
Hongwei Zhang +10 more
wiley +1 more source
ChemBioChem, Volume 23, Issue 23, December 5, 2022., 2022 Housing sulfur: Certain fungi produce diketopiperazine compounds with a transannular sulfur bridge. These so‐called epipolythiodioxopiperzines are toxic by non‐specifically interacting with intracellular proteins and contribute to fungal pathogenicity. Producer strains serve as bio‐pesticides but also question safety of food fermentation.
Eva M. Huber
wiley +1 more source
Angewandte Chemie, EarlyView.The structure and biosynthetic origin of the enigmatic “yellow affinity substance” (YAS) from the anaerobe thermophile Clostridium thermocellum (now: Acetivibrio thermocellus) were elucidated. YAS is a complex of unusual antibacterial arylpolyene alkaloids (celluxanthenes) that are produced by various cellulolytic anaerobes.
Keishi Ishida +9 more
wiley +2 more sources
Viridicatol from the Deep‐Sea‐Derived Fungus Alleviates Bone Loss by Targeting the Wnt/SHN3 Pathway
Advanced Science, EarlyView.Viridicatol (VDC), isolated from the deep‐sea‐derived fungus, enhances osteogenesis in vitro and in vivo by targeting Wnt/SHN3 signaling pathway. It can be delivered via engineered nanovesicles to mitigate bone loss of osteoporosis, fracture repair, and osteogenesis imperfecta.
Chun‐Lan Xie +10 more
wiley +1 more source