Scalable Synthesis of Diazeniumdiolates: Application to the Preparation of MK-8150
摘要:
Synthetic diazeniumdiolate (DAZD)-based nitric oxide is utilized to modulate the nitric oxide (NO) concentration in cellular environments and to control physiological processes, yet chemists are still struggling to find efficient and scalable methodologies that will enable them to access sufficient quantities of the high-energy diazeniumdiolate intermediates for biological studies. Now, a general, scalable, safer, and high-yielding new methodology adaptable to the large-scale synthesis of DAZDs has been developed.
Synthesis and anti-inflammatory activity of acetylsalicylamino acids and peptides
作者:Sh. Kh. Khalikov、M. Kodirov、S. V. Alieva
DOI:10.1007/s10600-006-0079-5
日期:2006.3
Several water-soluble acetylsalicylamino acids and peptides containing neutral and acidic amino acids were synthesized and investigated for anti-inflammatory activity.
合成了若干种含水溶性乙酰水杨酰的氨基酸及中性和酸性氨基酸的肽,并对其抗炎活性进行了研究。
PYRROLOTRIAZINE KINASE INHIBITORS
申请人:Wittman Mark D.
公开号:US20080009497A1
公开(公告)日:2008-01-10
The invention provides compounds of formula I
and pharmaceutically acceptable salts thereof.
The formula I compounds inhibit tyrosine kinase activity thereby making them useful as anticancer agents and for the treatment of Alzheimer's Disease.
Multicomponent asymmetric reactions mediated by proline lithium salt
作者:Polyssena Renzi、Jacob Overgaard、Marco Bella
DOI:10.1039/b924158b
日期:——
The multicomponent reaction between proline lithium salt, 2-cyclohexen-1-one and aliphatic aldehydes affords the 4-alkylidene-2-cyclohexen-1-ones, which are interesting fragrances, and bicyclic amino acids that bear four additional stereocenters, obtained as single stereoisomer.
Structure‐cytotoxicity relationship for apoptotic inducers organotin(IV) derivatives of mandelic acid and L‐proline and their mixed ligand complexes having enhanced cytotoxicity
Structure‐cytotoxicity relationship of di−/tri‐organotin(IV) derivatives of mandelic acid (1–4), L‐proline (5–7, 15, 16), and mixed ligand complexes of latter with 1,10‐phenanthroline (8–14) investigated on the basis of MTT assay against human cancer cell lines, viz. MCF‐7 (mammary cancer), HepG2 (liver cancer) and PC‐3 (prostate cancer) in vitro indicated that all complexes except methyl‐ and octyl‐
Conventional peptide synthesis requires a deprotection step after each amidation step, which decreases synthetic efficiency. Therefore, peptide synthesis using unprotected amino acids is considered an ideal approach. Here, we report peptide chain elongation using unprotected amino acids via a mixed carbonic anhydride. Micro-flow technology enabled rapid mixing of an organic layer containing a protected