## Abstract The synthesis of (__R__)‐ and (__S__)‐2‐hydroxy‐3‐enoic acid esters [(__R__)‐1a‐d and (__S__)‐1a‐c] is described. The (__R__) enantiomers were prepared by a Pinner synthesis from the corresponding (__R__)‐cyanohydrins [(__R__)‐2a‐d], which in turn were obtained by R‐oxynitrilase‐ (E.C.
(+)-Colletodiol : Synthesis from (S,S)-tartaric acid and (R)-3-hydroxy-butyric acid
✍ Scribed by Peter Schnurrenberger; Ernst Hungerbühler; Dieter Seebach
- Publisher
- Elsevier Science
- Year
- 1984
- Tongue
- French
- Weight
- 200 KB
- Volume
- 25
- Category
- Article
- ISSN
- 0040-4039
No coin nor oath required. For personal study only.
✦ Synopsis
Summahy: E-(RI -5-tfydkoxy-Z-hexenoic acid (4) and the acetovúde 06 E-(4R, 5R, 7R) -tihydtoxy-2--ootenoic acid (31 am joined tu &e, a&tm depkotecLLon, (+J-coUeeeRo&oL (ll. The. nqnthue,s 06 thc two hq&oxq-ati& @am poey-(RI -3-hydhoxy-bt&anoa& (P/+BJ uñd (-)-Ramtah¿c acid, ~enpec.a%wLq, am otimd.
📜 SIMILAR VOLUMES
## Abstract Starting from __R__,__R__‐(+)‐tartaric acid, the synthesis of (2__S__,3__R__,4__R__6__E__)‐3‐hydroxy ‐4‐methyl‐2‐methylamino‐6‐octenoic acid in 24 steps is reported. This novel amino acid is found in the cyclic undecapeptide cyclosporin A, isolated from the fungal strain __Tolypocladium
The first enantiospecific synthesis of (+)-conhydrine, one of the poisonous alkaloids of the hemlock was achieved via partial ring opening of 6,8-dJoxabicyclo[3.2.1]octane skeleton prepared from (S,S)-tartaric acid.