N-Acetyl-isoleucine inStreptomyces avermitilis
نویسندگان
چکیده
منابع مشابه
N-(β-Carboxyethyl)-α-isoleucine
The title compound, {2-[(2-carbamoyleth-yl)amino]-3-methyl-penta-noic acid}, C(9)H(18)N(2)O(3), is of inter-est with respect to its biological activity. It was formed during an addition reaction between acryl-amide and the amino acid isoleucine. The crystal structure is a three-dimensional network built up by inter-molecular N-H⋯O and O-H⋯N hydrogen bonds.
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In the crystal structure of the title compound [systematic name fluoren-9-ylmethyl N-(1-carb-oxy-2-methyl-butyl)carbamate], C(21)H(23)NO(4), the mol-ecular plane of the O=C-NH-C(α) unit is slightly pyramidalized. The N atom deviates from the basal plane by 0.2086 (12) Å. The O=C-N-C(α) torsion angle is -17.2 (2)°, and the C-N and O=C bond lengths are 1.3675 (17) and 1.2122 (17) Å, respectively....
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In the mol-ecule of the title compound, C(14)H(14)N(2)O(5)S(2), the dihedral angle between the aromatic rings is 77.75 (9)°. The acetamide group is planar [maximum deviation = 0.002 (3) Å] and oriented at dihedral angles of 13.49 (21) and 73.94 (10)° with respect to the aromatic rings. An intra-molecular C-H⋯O inter-action results in the formation of a six-membered ring. In the crystal structur...
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Ab initio/DFT analysis of the conformational properties of free Ac-Ala-NMe(2) (N-acetyl-L-alanine-N',N'-dimethylamide) in terms of the N-H.O, N-H.N, C-H.O hydrogen bonds and C(delta+) = O(delta-) dipole attractions was performed. The Ala residue combined with the C-terminal tertiary amide prefers an extended conformation and that characteristic of the (i + 1)th position of the betaVIb turn. The...
متن کاملN,N′-Diacetyl-N′-[(4-nitrophenoxy)acetyl]acetohydrazide
The asymmetric unit of the title compound, C(14)H(15)N(3)O(7), contains two independent mol-ecules which are linked into a pseudocentrosymmetric dimer by a π-π inter-action, as shown by the short distance of 3.722 (5) Å between the centroids of the benzene rings. An extensive network of weak inter-molecular C-H⋯O hydrogen bonds helps to stabilize the crystal packing.
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ژورنال
عنوان ژورنال: FEMS Microbiology Letters
سال: 1992
ISSN: 0378-1097,1574-6968
DOI: 10.1111/j.1574-6968.1992.tb05294.x