Synthesis of novel cyclic hydroxamic acids
β Scribed by Pabba Chittari; Achamma Thomas; Srinivasachari Rajappa
- Publisher
- Elsevier Science
- Year
- 1994
- Tongue
- French
- Weight
- 233 KB
- Volume
- 35
- Category
- Article
- ISSN
- 0040-4039
No coin nor oath required. For personal study only.
β¦ Synopsis
Abstrrrct: lk nitroacetyl (S)-proline esfers (Z,3,.5} are reduced by zinc-NH,Cl to the hydroxylamine stage and cyclized toprovide the novel chit-al bicyclic hydroxamic acids (2,4,6). Michael addition of ally1 acrylate on nhmacetic acid derivatives followed by Pd(0) catalyzed intramolecular ally1 transfer and subsequent reduction of the nib-o group yielded a novel class of cyclic hydroxamic acidr related to pyroglutamic acid
Hydroxamic acids constitute an important class of siderophores, which play a major role in iron-solubilixation and transport'. Some of these compounds have already found application as therapeutic
π SIMILAR VOLUMES
On oxidation of 18-oximino-20-hydroxypregnane derivatives with sodium z-chlorobenzenesulfonamide (chloramine B) (CB), Hora (1) reported that 6'methyl-tetrahydro-1'2'-oxaaino-(4',5': 135, 178
A novel approach to the solid supported synthesis of hydroxamic acids was developed. It employs oxime resin and unlike all previously reported methods allows for the use of acid labile protecting groups. Cleavage is induced by treatment with tert-butyldimethylsilyl-O-hydroxylamine, followed by silyl