Shioiri, Takayuki’s team published research in Heterocycles in 2003 | CAS: 87694-50-6

(S)-N-Methyl-N-methoxy-2-(tert-butoxycarbonylamino)-4-methylpentanamide(cas: 87694-50-6) belongs to amides. Because of the greater electronegativity of oxygen, the carbonyl (C=O) is a stronger dipole than the N–C dipole. The presence of a C=O dipole and, to a lesser extent a N–C dipole, allows amides to act as H-bond acceptors.“,” In primary and secondary amides, the presence of N–H dipoles allows amides to function as H-bond donors as well. COA of Formula: C13H26N2O4

Shioiri, Takayuki; Hughes, Robert John published their research in Heterocycles on December 31 ,2003. The article was titled 《Toward a total synthesis of keramamide B》.COA of Formula: C13H26N2O4 The article contains the following contents:

Important building blocks, the 2-bromo-5-hydroxytryptophan-oxazole unit (I), the α-keto-β-amino acid unit (II), and the side chain units (III and IV), for the preparation of keramamide B were efficiently synthesized. The results came from multiple reactions, including the reaction of (S)-N-Methyl-N-methoxy-2-(tert-butoxycarbonylamino)-4-methylpentanamide(cas: 87694-50-6COA of Formula: C13H26N2O4)

(S)-N-Methyl-N-methoxy-2-(tert-butoxycarbonylamino)-4-methylpentanamide(cas: 87694-50-6) belongs to amides. Because of the greater electronegativity of oxygen, the carbonyl (C=O) is a stronger dipole than the N–C dipole. The presence of a C=O dipole and, to a lesser extent a N–C dipole, allows amides to act as H-bond acceptors.“,” In primary and secondary amides, the presence of N–H dipoles allows amides to function as H-bond donors as well. COA of Formula: C13H26N2O4

Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics