@article { ISI:000299148200039,
	title = {Azide derivatized anticancer agents of vitamin K-3: X-ray structural, DSC, resonance spectral and API studies},
	journal = {Journal of Molecular Structure},
	volume = {1006},
	number = {1-3},
	year = {2011},
	month = {DEC},
	pages = {288-296},
	publisher = {ELSEVIER SCIENCE BV},
	address = {PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS},
	abstract = {<p>Compound 1 [1-imino (acetyl hydrazino)-Vitamin K-3], displays valence tautomerically related electronic isomers as Form land Form II. Form I exhibits 2D packing fragment with 1D ribbon chains of N-H center dot center dot center dot O hydrogen bonds and shows EPR silent features. While Form II is EPR active and exhibits biradical nature with double quantum transitions at g = 2.0040. H-1 NMR of compound 2, [1-imino (hydrazino carboxylate)-Vitamin K-3] and Form II exhibit pi delocalization via resonance assisted H-bonding [RAHB] effect compared to Form I. Molecular interactions in Form I and II are visualized by DSC. The electronic structures of compounds 1 and 2 have been correlated to their API values by measuring anticancer activities, mitochondrial potentials and DNA shearing patterns. Form II and compound 2 indicate mitochondria mediated apoptosis (similar to 75\% cell death) while Form I causes 35\% cell death. (C) 2011 Elsevier B.V. All rights reserved.</p>},
	keywords = {Anticancer agents, API (Active Pharmaceutical Ingredients), Electronic isomers, RAHB (resonance assisted H-bonding), Vitamin K-3},
	issn = {0022-2860},
	doi = {10.1016/j.molstruc.2011.09.022},
	author = {Badave, Kirti D. and Patil, Yogesh and Gonnade, Rajesh G. and Srinivas, Darbha and Dasgupta, Rajan and Khan, Ayesha A. and Rane, Sandhya}
}
