Crystal structure of (2S,3S,4R)-1-tert-butoxycarbonylamino-3-hydroxy- 2-isobutyl-4-methylproline methyl ester, C16H29NO5
نویسندگان
چکیده
منابع مشابه
Crystal structure of 2-(4-tert-butylphenyl)-3-hydroxy-4H-chromen-4-one
Yellow-green fluorescent crystals of the title compound, C19H18O3, were obtained by the reaction of hy-droxy-aceto-phenone and 4-tert-butyl-benzaldehyde with hydrogen peroxide as oxidant. The plane of the benzene ring is slightly twisted to the mean plane of the 4H-chromene-4-one moiety (r.m.s. deviation = 0.0191 Å) by 10.53 (8)°. In the crystal, mol-ecules are linked by pairs of O-H⋯O hydrogen...
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In the title compound, C17H18ClNO5, which was synthesized by reacting 4-chloro-3-formyl-coumarin, acetic acid and tert-butyl isocyanide, the acetamido side chain is convoluted with ring-to-side chain C-C-C-C, C-C-C-N and C-C-N-C torsion angles of -123.30 (14), -135.73 (12) and 176.10 (12)°, respectively. In the crystal, N-H⋯O and weak C-H⋯O hydrogen bonds are present, which together with π-π co...
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psuedopeptide backbone composed of N-(2-aminoethyl) glycine units, and nucleobases are attached by methylene carbonyl linkers (Fig. 1). Since the binding of PNA to DNA inhibits transcription, the potential of PNA has been focused to target an antisense drug.1 Moreover, PNA-peptides hybridization and improvements of the PNA backbone unit were developed to form DNA-DNA-PNA triplexes with nonspeci...
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In the title compound, C21H24ClN3O3, the dihedral angle between the pyran ring (r.m.s. deviation = 0.037 Å) and the chloro-benzene ring is 88.56 (14)°. In the crystal, the mol-ecules are linked by C-H⋯O inter-actions, generating C(7) (001) chains.
متن کاملCrystal structure of (4Z)-4-[(2E)-1-hydroxy-3-(naphthalen-2-yl)prop-2-en-1-ylidene]-3-methyl-1-phenyl-1H-pyrazol-5(4H)-one
In the title compound, C23H18N2O2, the pyrazole ring subtends dihedral angles of 2.01 (13) and 1.55 (10)° with the pendant benzene ring and the naphthalene ring system, respectively. The mol-ecule is almost planar (r.m.s. deviation for the 27 non-H atoms = 0.025 Å) and intra-molecular O-H⋯O and C-H⋯O hydrogen bonds both close S(6) loops. In the crystal, very weak aromatic π-π stacking inter-act...
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ژورنال
عنوان ژورنال: Zeitschrift für Kristallographie - New Crystal Structures
سال: 2007
ISSN: 2197-4578,1433-7266
DOI: 10.1524/ncrs.2007.0152