Indole and its derivatives constitute a foundational scaffold in both natural products and pharmaceutical chemistry, distinguished by a bicyclic system combining a benzene ring fused to a pyrrole ...

The indole nucleus is a privileged scaffold in natural products, pharmaceuticals and agrochemicals. Its unique electronic structure and reactivity at the C2 and C3 positions have spurred the ...

Please provide your email address to receive an email when new articles are posted on . The device preserves the structure of the capsular bag after crystalline lens removal. It prevents posterior ...

Tyler has worked on, lived with and tested all types of smart home and security technology for over a dozen years, explaining the latest features, privacy tricks, and top recommendations. With degrees ...

Oura discontinued Ring 3 in late 2025, so if you own one, the real question is whether Ring 4 is worth the upgrade. After our testing, Ring 4 wins in every area: fewer data gaps, better comfort, and ...

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Jon Chase Jon Chase is an editor of smart-home coverage. For the past two ...

UPDATE: According to The Hollywood Reporter, Elden Ring is A24's most ambitious project ever, with a budget "well over $100 million." That makes it a more expensive production than the likes of Marty ...

We’ve tested both of these rings extensively, and the real choice comes down to this: do you want the best health insights and software, or the most comfortable fit, longer battery life, and no ...

I’ve been working with computers for ages, starting with a multi-year stint in purchasing for a major IBM reseller in New York City before eventually landing at PCMag (back when it was still in print ...

One owns sleep, one owns fitness. After months of testing both, here's what you need to know to make the right call for you. Vanessa is a lead writer at CNET, reviewing and writing about the latest ...

Ring vaccination is a type of vaccine strategy. If a person is exposed to a virus, a vaccine for that virus is given to others who are in close contact with that person, such as close family and ...

吲哚广泛存在于药物和天然产物中。研究者展示了色胺衍生物的一种分子内骨架编辑反应。该反应通过侧链酰胺的光反应实现，同时完成了吲哚C2位区域选择性的单碳置换与取代。该策略不仅能够在吲哚C2位实现氘代、烷基化、芳基化和酰基化，还能够将13C标记的碳原子引入骨架中。 通过对复杂单萜吲哚生物碱quebrachamine的简洁四步全合成，研究者验证了该方法的实用价值。实验研究与密度泛函理论计算揭示了一条涉及级 ...