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Assignment of proton and carbon NMR signals of didemnin A in solution (1988)

Kessler, H. ; Will, M. ; Sheldrick, G. M. ; [et al.]

Chichester : Wiley-Blackwell

Organic Magnetic Resonance 26 (1988), S. 501-506

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ISSN: 0749-1581

Keywords: Cyclic depsipeptide ; Inverse COLOC ; Inverse HMQC ; Semi-selective excitation ; NMR assignments in peptides ; Didemnin ; Chemistry ; Analytical Chemistry and Spectroscopy

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: Several one- and two-dimensional techniques have been used to assign the 1H and 13C NMR spectra of the cyclic heptadepsipeptide didemnin A in DMSO. The composition and sequence of the amino acid residues was known beforehand and could be confirmed by heteronuclear proton-carbon long-range couplings using the COLOC experiment and a recently proposed new inverse technique using Gaussian-shaped pulses. The aliphatic methyl resonances of the isostatin, hydroxyisovalerylpropionyl, N-methylleucine and leucine residues were assigned by means of the TOCSY and NOESY techniques. Aliphatic carbon assignment was performed by inverse correlation via heteronuclear double quantum coherence.

Additional Material: 5 Ill.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/mrc.1260260613

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Darstellung und Kristallstruktur von [(Me3SiCH2)2InP(H)Ad]2Herrn Professor Peter Satori zum 60. Geburtstage gewidmet (1992)

Dembowski, U. ; Roesky, H. W. ; Pohl, E. ; [et al.]

Weinheim : Wiley-Blackwell

Zeitschrift für anorganische Chemie 611 (1992), S. 92-94

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ISSN: 0044-2313

Keywords: Indium-phosphorus four-membered ring ; phosphide ; phosphorus-indium bond ; phosphorus-hydrogen bond ; Chemistry ; Inorganic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Description / Table of Contents: Preparation and Crystal Structure of [(Me3SiCH2)2InP(H)Ad]2Reaction of (Me3SiCH2)3 In with AdPH2 (Ad = adamantyl) in the presence of AgNO3 leads to [(Me3SiCH2)2InP(H)Ad]2 1 in 30% yield. The crystal structure of 1 is discussed.

Notes: Die Reaktion von (Me3SiCH2)3 In mit AdPH2 (Ad = Adamantyl) führt in Gegenwart katalytischer Mengen AgNO3 unter Abspaltung von Tetramethylsilan in 30% Ausbeute zu [(Me3SiCH2)2InP(H)Ad]2 1. Die Kristallstruktur von 1 wird diskutiert.

Additional Material: 1 Ill.