29520-88-5Relevant articles and documents
SYNTHETIC METHOD FOR CERATAMINE A AND B AND ANALOGS THEREOF
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Page/Page column 8, (2010/09/18)
Methods are provided for preparing compounds of the general formula (I) wherein X1 is an aryl hydrocarbon group optionally substituted with one or more groups independently selected from —R, —NH2, —NHR, —NR2, —OH, —OR, —F, —Cl, —Br, —I, —CF3, —C(═O)OH, —C(═O)OR, —C(═O)NH2, —C(═O)NHR, and —C(═O)NR2; X2 is —H, —R, —NHR, —NR2, —OR, —F, —Cl, —Br, or —I; and R is C1 to C10 hydrocarbyl. The methods comprise a double-dehydrogenation reaction step in which a functionalized aminohydroazepinone skeleton comprising an aminoimidazole ring is reacted with 2-iodoxybenzene to form the imidazo[4,5-d]azepine ring system present in formula (I). Example methods comprising the double-dehydrogenation reaction step are provided as efficient synthetic routes to ceratamine A, ceratamine B, and the des-methyl analogs thereof.
The first total synthesis of the proposed structure of montiporyne E
Collison, Christina G.,Chen, Jian,Walvoord, Ryan
, p. 2319 - 2322 (2008/02/03)
Montiporyne E, a novel diacetylenic lactam isolated from the stony coral Montipora sp., was shown to exhibit cytotoxicity against certain solid tumor cells. Construction of a suitably functionalized α,β-unsaturated lactam for palladium-catalyzed couplings
