173209-00-2Relevant articles and documents
Stereochemical analysis of α1, a mating hormone of the phytopathogen Phytophthora
Ojika, Makoto,Qi, Jianhua,Kito, Yuko,Sakagami, Youji
, p. 1763 - 1765 (2007)
The stereochemistry of α1, the first identified mating hormone of the plant pathogen Phytophthora, has been unknown due to its acyclic flexible nature. Here, two stereogenic centers of α1 are determined to be (3RS,15R)-configuration by NMR analysis of the
3,6-DIAMINO-PYRIDAZIN-3-YL DERIVATIVES, PHARMACEUTICAL COMPOSITIONS CONTAINING THEM AND THEIR USES AS PRO-APOPTOTIC AGENTS
-
, (2021/02/05)
Compounds of formula (I) wherein Het1, Het2, R1, R2 and R3 are as defined in the description. Medicaments.
Highly enantioselective rhodium-catalyzed hydrogenation of 2-(2-methoxy-2-oxoethyl)acrylic acid - A convenient access of enantiomerically pure isoprenoid building blocks
Ostermeier, Markus,Brunner, Bernhard,Korff, Christian,Helmchen, Guenter
, p. 3453 - 3459 (2007/10/03)
Asymmetric catalytic hydrogenation of 2-(2-methoxy-2-oxoethyl)acrylic acid (5) to give (2S)-4-methoxy-2-methyl-4-oxobutanoic acid [(S)-6] was studied. An enantiomeric excess of 99.7% ee was achieved with a catalyst formed in situ from [Rh(COD)2]BF4 and the chiral phosphite L2 in 1,2-dichloroethane as solvent. In addition, enzyme-catalyzed semi-saponification of dimethyl 2-methylsuccinate was investigated. Mono ester (S)-6 was transformed into a few compounds which can serve as C 5-building blocks in natural product syntheses. Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2003.