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Your search keyword '"Mulgrew, Anna E."' showing total 7 results
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7 results on '"Mulgrew, Anna E."'

1. (super 13)C NMR investigation of solid-state polymorphism in 10-deacetyl baccatin lll

Author

Harper, James K., Grant, David M., Facelli, Julio C., Barich, Dewey H., McGeorge, Gary, and Mulgrew, Anna E.

Subjects
Polymorphism (Crystallography) -- Research, Nuclear magnetic resonance -- Research, Chemistry
Abstract

Carbon NMR chemical shit tensors are measured for two forms of solid 10-deacetyl baccatin lll to find out more about the origins of solid-state NMR shift differences in polymorphs. Tensor differences that were observed seem to be basically because of conformational variations in ring substituents and the cyclohexenyl ring.

Published
2002

2. Characterization of stereochemistry and molecular conformation using solid-state NMR tensors

Author

Harper, James K., Mulgrew, Anna E., Jia, Yao Li, Barich, Dewey H., Strobel, Gary A., and Grant, David M.

Subjects
Natural products -- Research, Natural products -- Chemical properties, Nuclear magnetic resonance, Stereochemistry, Chemistry
Abstract

A solid-state NMR technique is described for establishing sterochemistry using the natural product terrein as a model compound. This method involves comparison of experimental (super 13) C tensor principal values with ab initio computed values for all possible computer-generated stereoisomers.

Published
2001

6. 10‐De­acetyl baccatin III di­methyl sulfoxide disolvate

Author

Harper, James K., Dalley, N. Kent, Mulgrew, Anna E., West, F. G., and Grant, David M.

Abstract

The title compound, C29H36O10·2C2H6OS, forms a monoclinic crystal containing two hydrogen‐bonded di­methyl sulfoxide mol­ecules per 10‐de­acetyl baccatin III. The lattice is further stabilized by two additional hydrogen bonds and a dipole–dipole interaction. A comparison of 10‐de­acetyl baccatin III with the structurally similar docetaxel reveals differences primarily in the benzoyl moiety, while comparisons to baccatin III identify relative differences principally in the cyclo­octane‐ and cyclo­hexane‐ring conformations.

Published
2001
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7. [sup 13]C NMR Investigation of Solid-State Polymorphism in 10-Deacetyl Baccatin III.

Author

Harper, James K., Facelli, Julio C., Barich, Dewey H., McGeorge, Gary, Mulgrew, Anna E., and Grant, David M.

Subjects
*NUCLEAR magnetic resonance, *LATTICE theory
Abstract

Reports on the measurement of carbon nuclear magnetic resonance (NMR) chemical shift tensors for two forms of solid 10-deacetyl baccatin III to investigate the origins of solid-state NMR. Finding that lattice interactions cannot fully account for the shift differences in the two forms; Possible appearance of the observed tensor differences from conformational variations in ring substituents.

Published
2002
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