@article {47403,
	title = {Wittig reactions of maleimide-derived stabilized ylides with alkyl pyruvates: concise approach to methyl ester of (+/-)-chaetogline A},
	journal = {Synthesis-Stuttgart},
	volume = {53},
	year = {2021},
	month = {APR },
	type = {Article},
	abstract = {<p>A facile synthesis of methyl ester of chaetogline A is reported starting from the corresponding methyl 1-methyltryptophanate-derived- maleimide. A stereoselective Wittig olefination with a carbonyl function in methyl pyruvate followed by phosphorous pentoxide-induced- regioselective dehydrative cyclization are the essential reactions. An acid-induced thermodynamically driven stereoselective beta- to alpha-position migration of the exocyclic C=C bond unit in ethyl tetrahydroindolizinoindolylidenepropanoate is described.</p>},
	keywords = {Amino acid, chaetogline A, dehydrative cyclization, maleimide, methyl pyruvate, Natural product, Wittig reaction},
	issn = {0039-7881},
	doi = {10.1055/a-1477-6043, Early Access Date = APR 2021},
	author = {Shelar, Santosh V. and Argade, Narshinha P.}
}
@article {48097,
	title = {Total synthesis of 12, 13-dibenzyl-banistenoside B and analogs},
	journal = {European Journal of Organic Chemistry},
	volume = {2022},
	year = {2022},
	month = {MAY},
	pages = {e202200222},
	type = {Article},
	abstract = {<p>
	Banistenosides A and B possessing a unique {\textquoteleft}{\textquoteleft}azepino(1,2-a)tetrahydro-beta-carboline{\textquoteright}{\textquoteright} carbon framework were isolated from the stem of Banisteriopsis caapi and showed MAO-A inhibition. Herein, we report the total synthesis of dibenzyl derivative of the untouched natural product in the last two decades, Banistenoside B. The key steps involve construction of 6.5.6.7 tetracyclic core using Pictet-Spengler reaction and intramolecular amide coupling. The stereoselective glycation was achieved through Hotha{\textquoteright}s protocol using gold catalyst, and silver triflate in the late stage of synthesis. The stereochemistry of most of the essential compounds were confirmed by X-ray crystallography.</p>
},
	keywords = {Au-catalyst, Multiple steps total synthesis, Natural products, Pictet-Spengler reaction, Wittig reaction},
	issn = {1434-193X},
	doi = {10.1002/ejoc.202200222},
	author = {Patil, Suhag S. and Jachak, Gorakhnath R. and Krishna, Gamidi Rama and Argade, Narshinha P. and Reddy, D. Srinivasa}
}
