209252-17-5Relevant articles and documents
CANCER IMAGING AND TREATMENT
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, (2014/02/16)
A compound, or a pharmaceutically acceptable salt or ester thereof, comprises the structure: [in-line-formulae][(P1-S1j)p-L-(S2q-P2)r]t [/in-line-formulae] wherein: P1 and P2, which may be the same or
Design, synthesis, and functionalization of dimeric peptides targeting chemokine receptor CXCR4
Demmer, Oliver,Dijkgraaf, Ingrid,Schumacher, Udo,Marinelli, Luciana,Cosconati, Sandro,Gourni, Eleni,Wester, Hans-Jürgen,Kessler, Horst
, p. 7648 - 7662 (2012/01/13)
The chemokine receptor CXCR4 is a critical regulator of inflammation and immune surveillance, and it is specifically implicated in cancer metastasis and HIV-1 infection. On the basis of the observation that several of the known antagonists remarkably shar
Homologation of α-amino acids to β-amino acids: 9-Fluorenylmethyl chloroformate as a carboxyl group activating agent for the synthesis of Nα-protected aminoacyldiazomethanes
Kantharaju,Suresh Babu, Vommina V.
, p. 2152 - 2158 (2007/10/03)
An efficient and stereospecific homologation of urethane-protected α-amino acids to β-amino acids by Arndt-Eistert approach using an equimolar mixture of Fmoc-/Boc-/Z-α-amino acid and 9-fluorenylmethyl chloroformate for the acylation of diazomethane synth
Synthesis of Fmoc-/Boc-/Z-β-amino acids via Arndt-Eistert homologation of Fmoc-/Boc-/Z-α-amino acids employing BOP and PyBOP
Vasanthakumar,Babu, V. V. Suresh
, p. 1691 - 1695 (2007/10/03)
A simple and efficient protocol for Arndt-Eistert chain homologation of Fmoc-/Boc-/Z-α-amino acids using BOP or PyBOP as a coupling agent to the corresponding β-amino acids, synthesizing the key intermediate α-diazoketones as crystalline solids in good yield is described.
Synthesis of β-amino acids: 2-(1H-benzotriazol-1-yl)-1,1,3,3-tetramethyl-uronium tetrafluoroborate (TBTU) for activation of Fmoc-/Boc-/Z-α-amino acids
Patil, Basanagoud S.,Vasanthakumar, Ganga-Ramu,Suresh Babu
, p. 3089 - 3096 (2007/10/03)
A new and efficient method for the homologation of urethane protected α-amino acids to its β-homomers by the Arndt-Eistert method using TBTU as a coupling agent is described. Several Fmoc-/Boc-/Z-protected α-amino diazoketone derivatives have been obtaine
Synthesis of (R) and (S) enantiomers of Fmoc-protected 1,2,4-oxadiazole-containing β3-amino acids from Fmoc-(R)-β-HAsp(OtBu)-OH
Hamzé, Abdallah,Hernandez, Jean-Fran?ois,Martinez, Jean
, p. 6079 - 6082 (2007/10/03)
Fmoc-(R)-β-HomoAsp(OtBu)-OH was used for the synthesis of both (R) and (S) enantiomers of various Fmoc-protected 3-substituted 1,2,4-oxadiazole-containing β3-amino acids. The 1,2,4-oxadiazole heterocycle was formed using sodium acetate, a Fmoc-
Homologation of α-amino acids to β-amino acids using Boc2O
Vasanthakumar, Ganga-Ramu,Patil, Basanagoud S.,Suresh Babu, Vommina V.
, p. 2087 - 2089 (2007/10/03)
The use of Boc2O as a coupling agent in the homologation of N-urethane protected-α-amino acid to its β-homomers by the Arndt-Eistert method is described. The homologation gives good yields without racemization. The use of Boc2O as a
Convenient and simple synthesis of N-{[(9H-fluoren-9- yl)methoxy]carbonyl}-(Fmoc) protected β-amino acids (=homo-α-amino acids) employing Fmoc-α-amino acids and dicyclohexylcarbodiimide(DCC) mixtures
Ananda,Suresh Babu
, p. 418 - 423 (2007/10/03)
A simple approach for the homologation of α-amino acids to β-amino acids by the Arndt-Eistert method employing Fmoc-α-amino acid and N, N1- dicyclohexylcarbodiimide (DCC) mixture for the acylation of diazomethane, synthesizing the key intermediates Fmoc-α-amino acyldiazomethanes as crystalline solids is described.
Synthesis of Fmoc-β-homoamino acids by ultrasound-promoted wolff rearrangement
Müller, Annett,Vogt, Carla,Sewald, Norbert
, p. 837 - 841 (2007/10/03)
A highly efficient protocol for Amdt-Eistert chain elongation of the base-labile fluorenylmethoxycarbonyl (Fmoc) protected α-amino acids by Ag+- catalyzed, ultrasound-promoted Wolff rearrangement of the corresponding α- diazo ketones at room temperature is described. The enantiomeric purity of the products was examined by capillary zone electrophoresis with chiral buffer systems.