# Structure of Cryptosin Monohydrate - a New Cardioactive Glycoside

Narendra, N and Viswamitra, MA and Venkateswara, R and Rao, Sankara K and Vaidyanathan, CS (1987) Structure of Cryptosin Monohydrate - a New Cardioactive Glycoside. In: Acta Crystallographica Section C, 43 (8). pp. 1562-1564.

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Official URL: http://dx.doi.org/10.1107/S010827018709108X

## Abstract

$C_{29}H_4O_{11}.H_20$, $M_r = 5 82.7$, orthorhombic, $P2_12_12_1$, a = 9.663 (5), b = 11.723 (1), $c = 25.626 (3)\AA$, Z = 4, $V = 2902.9 \AA^3$, $D_x = 1.33 Mg m^{-3}$, $\lambda (Cu K\alpha) = 1.5418 \AA$, $\mu = 0.9 mm^{-1}$, F(000) = 1248, T= 295 K, final R for 2273 observed reflections is 0.077. Cryptosin contains deoxyglucose, asteroid group and a lactone ring. The glucopyranose ring assumes a chair conformation. The steroid group shows the presence of an epoxy group unlike in other cardioactive compounds such as strophanthidin and digitoxigenin. The A/B and C/D ring junctions are cis as in other cardioactive steroids. The molecules pack in a network which contains three distinct hydrogen bonds.

Item Type: Journal Article Copyright of this article belongs to Blackwell Synergy Division of Biological Sciences > BiochemistryDivision of Biological Sciences > Microbiology & Cell BiologyDivision of Physical & Mathematical Sciences > Physics 01 Apr 2008 31 Mar 2011 04:52 http://eprints.iisc.ernet.in/id/eprint/13631