101330-11-4Relevant articles and documents
Vinyl isocyanates in alkaloid synthesis. Camptothecin model studies
Rigby, James H.,Danca, Diana M.
, p. 4969 - 4972 (1997)
Model studies directed toward camptothecin employing a vinyl isocyanateenamine cyclocondensation as the key synthetic step are reported.
Intermediates and method of making camptothecin and camptothecin analogs
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, (2008/06/13)
Compounds of Formula I STR1 are made in accordance with the following scheme: STR2 wherein R may be loweralkyl; R1 may be H, loweralkyl, loweralkoxy, or halo; R2, R3, R4, and R5 may each independently be H, amino, hydroxy, loweralkyl, loweralkoxy, loweralkylthio, di(loweralkyl)amino, cyano, methylenedioxy, formyl, nitro, halo, trifluoromethyl, aminomethyl, azido, amido, hydrazino, or any of the twenty standard amino acids bonded to the A ring via the amino-nitrogen atom; Y is H and W and X are halogen. Also disclosed are novel processes for making starting materials for the scheme given above, and novel intermediates employed in these processes.
Evidence in favor of lithium-halogen exchange being faster than lithium-acidic hydrogen (deuterium) exchange
Narasimhan, Nurani S.,Sunder, Nurani M.,Ammanamanchi, Radhakrishna,Bonde, Bhagavat D.
, p. 4431 - 4435 (2007/10/02)
Treatment of 2-iodo-3-(deuterioxymethyl)quinoline with 1.5 equiv of n-butyllithium in ether, followed by aqueous work up, furnished 2-deuterio-3-(hydroxymethyl)quinoline in greater than 50% yield, confirming our earlier report,2 which has been