The condensation of (1 R,2S) or (lS,2S)-N,N'-dimethyI-l-phenylpropane-l 2-diamines with aldehydes gives respectively two diastereorneric 2-alkyl-l,3,4-trimethyI-S-phen limidazolidines. At thermodynamical equilibrium the major isomer in the erythro series is this one where t f ! e substituents at pos
Syntheses de l'Acide (2R, 3S); (2S, 3R) Agarique (14C-4) et de l'Acide (2R, 3R); (2S, 3S) Agarique (3H-4,4,5,5)
✍ Scribed by J. P. Lellouche; J. P. Beaucourt; L. Pichat
- Publisher
- John Wiley and Sons
- Year
- 1984
- Tongue
- French
- Weight
- 286 KB
- Volume
- 21
- Category
- Article
- ISSN
- 0022-2135
No coin nor oath required. For personal study only.
✦ Synopsis
Epoxy ring opening of 2 and 2 with [ l -1 4 C ] hexadecyl copper lo gave respectivezy t h e analog 4 of agaric acid trimethyl e s t e r and methy2 b -1 4 ~J a g a r i c a t e 5, which-was hydrolysed t o -& by Zithium hy-&oxide i n I, 2-dimethoxyethane (DME).
Epoxy ring trans opening of -2 with d i e t h y l I-hexadecynyZatane 9 qave the aZcynyZ derivative which was saturated with t r i t i u m i n presence of Pd/C t o lead t o 5. A f t e r hydroZysis (LioH + DMEI, & was obtained.
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