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Trichodesmic Acid

The alkaloid croalbine (66) (mp 208-209°) was shown to be the cyclic diester of croalbinecine and trichodesmic acid (39). [Pg.274]

Since the o.r.d. and c.d. curves of monocrotalic acid are very similar to the corresponding curves exhibited by trichodesmic acid (49), which is known independently to have the same relative configuration at C-2, C-3, and C-4 as monocrotalic acid, the absolute configuration of trichodesmic acid must also be 2R,3R,4R. [Pg.69]

The gross structure of trichodesmic acid is well conceived as CCXXV,... [Pg.101]

A neat synthesis of trichodesmic acid has been effected by Edwards and Matsumoto (152) starting with (+ )-2,3-dimethyl-4-isopropyl-... [Pg.283]

Chart VI. The biosynthesis of tiglio, eohimidinic, and trichodesmic acids, and the C5 unit common to the Cio adipic acids and monocrotalic acid according to Crout. [Pg.318]

Devlin, J. A. and D. J. Robins, Pyrrolizidine alkaloids, biosynthesis of trichodesmic acid. J. Chem. Soc., Perkin Trans. I, 1229-1332 (1984). [Pg.564]

Similar findings were reported for the acidic part in the PA strigosine [69] and for angeloylic and tigloylic acid [70]. In the case of the acidic part in the PA monocrotaline, it was shown that not acetate, mevalonate, orglutarate (as reported earlier) are involved but it is only formed via isoleucine [71], Stereospecific aspects were also studied in the case of senecic and isatinecic acid [72, 73]. The biosynthesis of trichodesmic acid was studied and it was shown that one part of the Cio acid was formed by (25)-isoleucine or its biosynthetic precursor (25)-threonine and the other C5 unit from (25)-leucine or (25)-valine [74]. The complete labeling pattern of senecic acid (the acidic part in the PAs rosmarinine and senecionine) was studied by NMR experiments and it was stated that the biosynthesis of this acid is processed via two molecules of isoleucine (Scheme 13.2) [75]. [Pg.367]

Devlin JA, Robins DJ (1984) Pyrrolizidine alkaloids. Biosynthesis of trichodesmic acid. J Chem Soc, Perkin Trans 1 1329-1332... [Pg.377]

Trichodesmic acid, K23 Trichothecin, T31 Trichotomine, K3 Trichoviridine, Yll Tricyclovetivenol, T27 Tridentoquinone, YIO Triflorizin, Y3 Triglycerides, A14 Triiodothyronine, AS Tri-O-methylpeltogynone, Y4 Tri-<9rr/zo-thymotide, XI l Tripdiolide, T13 Triphenylenes, XI0 Tripmeperidine, A18 Triptycenes, X4 Triquinacenes, X4 ... [Pg.169]

See other pages where Trichodesmic Acid is mentioned: [Pg.69]    [Pg.36]    [Pg.100]    [Pg.100]    [Pg.101]    [Pg.101]    [Pg.108]    [Pg.116]    [Pg.283]    [Pg.283]    [Pg.284]    [Pg.284]    [Pg.307]    [Pg.317]    [Pg.318]    [Pg.72]    [Pg.77]    [Pg.78]    [Pg.77]    [Pg.77]    [Pg.547]    [Pg.208]    [Pg.162]    [Pg.199]    [Pg.198]   
See also in sourсe #XX -- [ Pg.274 ]

See also in sourсe #XX -- [ Pg.100 ]

See also in sourсe #XX -- [ Pg.283 ]

See also in sourсe #XX -- [ Pg.23 ]



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