17 research outputs found
FORMAL TOTAL SYNTHESES OF CROCACIN A-D
No full textA concise route to the common polyketide fragment 5 of crocacin A-D (1-4) is presented which has previously been converted into all members of this fungicidal and cytotoxic family of dipeptidic natural products by various means. Our synthesis features a syn-selective titanium aldol reaction controlled by a valinol-derived auxiliary, a zinc-mediated, palladium-catalyzed anti-selective addition of propargyl mesylate 10 to the chiral aldehyde 9, as well as a comparison of palladium-catalyzed Stille and Suzuki cross-coupling reactions for the formation of the diene moiety of the target
Computer investigations of a double focusing spectrometer and comporisons with experimental results
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Particle trajectories in magnetic fields. A comparison between calculated and experimental results
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Subnormal CSF levels of neurotensin in a subgroup of schizophrenic patients: normalization after neuroleptic treatment
No full textSUBNORMAL CSF LEVELS OF NEUROTENSIN IN A SUBGROUP OF SCHIZOPHRENICS AND NORMALIZATION AFTER NEUROLEPTIC TREATMENT
No full textInverse problems of magnetostatics and the design of double-focusing electron magnetic spectrometers
No full textDiastereocontrol by a Hydroxyl Auxiliary in the Synthesis of Pyrrolidines via Radical Cyclization
No full textPyrrolidines from β-Aminoselenides via Radical Cyclization. Diastereoselectivity Control by the N-Substituent
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