New PTA (1,3,5-triaza 7-phosphaadamantane) derivatives associating zwitterionic structure and coordinative ability
摘要:
The reactions of PTA (1,3,5-triaza 7-phosphaadamantane) and HMTA (1,3,5,7-tetraazaadamantane) with 1,3-propanesultone or 1,4-butanesultone gave the water soluble zwitterionic derivatives PTA(+) C3H6SO3 (1), PTA+ C4H8SO3 (2), HMTA(+) C3H6SO3 (3) and HMTA(+)C(4)H(8)SO(3) (4). The crystal structure of HMTA(+)C(3) H6SO3 is reported. The coordinative ability of 1-4 towards Pt(II) and Ru(II) has been investigated and the antiproliferative activity of ligands and complexes has been tested in two human ovarian cancer cell lines, A2780 and SKOV3. (C) 2012 Elsevier B.V. All rights reserved.
Novel water-soluble phosphatriazenes: versatile ligands for Suzuki–Miyaura, Sonogashira and Heck reactions of nucleosides
作者:Shatrughn Bhilare、Vijay Gayakhe、Ajaykumar V. Ardhapure、Yogesh S. Sanghvi、Carola Schulzke、Yulia Borozdina、Anant R. Kapdi
DOI:10.1039/c6ra19039a
日期:——
complexation reactions with Pd(OAc)2 and utilized for catalyzing column-free Suzuki–Miyaura cross-coupling of various purine and pyrimidine halonucleosides in water. The water-solubility of the catalyticsystem simplified the isolation of the cross-coupled products to mere filtration, while the catalytically active solution in the filtrate was recycled eight times. A novel copper-free Sonogashira coupling