[EN] TUBULYSIN ANALOGS AND METHODS FOR THEIR PREPARATION<br/>[FR] ANALOGUES DE LA TUBULYSINE ET LEURS PROCÉDÉS DE PRÉPARATION
申请人:PFIZER
公开号:WO2017134547A1
公开(公告)日:2017-08-10
The present invention is directed to novel cytotoxic tubulysin analogs and derivatives, to antibody drug conjugates thereof, and to methods for using the same to treat medical conditions including cancer.
Enantioselective Addition of Vinylzinc Reagents to Aldehydes Catalyzed by Modular Ligands Derived from Amino Acids
作者:Meaghan L. Richmond、Christopher M. Sprout、Christopher T. Seto
DOI:10.1021/jo051313l
日期:2005.10.1
enantioselectivities that ranged from 52 to 91% ee and yields that ranged from 40 to 90%. This ligand was especially effective for the reaction of aromatic aldehydes with vinylzinc reagentsderivedfrom bulky terminal alkynes. Ligand 3d catalyzed the addition of (E)-(3,3-dimethylbut-1-enyl)(ethyl)zinc to 2-naphthaldehyde to give (R,E)-4,4-dimethyl-1-(naphthalene-1-yl)pent-2-en-1-ol in 89% ee. The ee of this
Design, Synthesis, and Cytotoxic Evaluation of Novel Tubulysin Analogues as ADC Payloads
作者:Carolyn A. Leverett、Sai Chetan K. Sukuru、Beth C. Vetelino、Sylvia Musto、Kevin Parris、Jayvardhan Pandit、Frank Loganzo、Alison H. Varghese、Guoyun Bai、Bin Liu、Dingguo Liu、Sarah Hudson、Venkata Ramana Doppalapudi、Joseph Stock、Christopher J. O’Donnell、Chakrapani Subramanyam
DOI:10.1021/acsmedchemlett.6b00274
日期:2016.11.10
antibody–drug conjugates (ADCs). A structure-based and parallel medicinal chemistry approach was applied to the synthesis of novel tubulysin analogues. These efforts led to the discovery of a number of novel and potent cytotoxic tubulysin analogues, providing a framework for our simultaneous report, which highlights the discovery of tubulysin-based ADCs, including use of site-specific conjugation to address
Asymmetric syn-selective direct aldol reaction of protected hydroxyacetone catalyzed by primary amino acid derived bifunctional organocatalyst in the presence of water
derived from natural primary amino acids bearing a hydrophobic side chain have been synthesized. These new primary-tertiary diamine-Brønsted acid conjugates bifunctional organocatalysts efficiently catalyzes the asymmetric direct syn selective cross-aldolreaction of different protected hydroxyacetone with various aldehydes in high yield (94%) and high enantioselectivity (up to 97% ee of syn) and dr
The ability of counterion enhanced catalysis to promote the asymmetric functionalization of enones was demonstrated. Combining the use of sterically demanding phosphoric acids with simple chiral diamines allowed for the preparation of simple ion-paired and highly tunable organocatalysts. The latter could be applied in four different asymmetric transformations, providing a highly enantioselective access