176652-03-2Relevant articles and documents
Unprecedented synthesis of 1,2,3-triazolo-cinnolinone via Sonogashira coupling and intramolecular cyclization
Kumar, Avnish,Tiwari, Dharmendra Kumar,Sridhar, Balasubramanian,Likhar, Pravin R.
, p. 4840 - 4848 (2018)
An unprecedented copper mediated one-pot sequential synthesis of 1,2,3-triazolo cinnolinone derivatives from 2-halo-phenyl triazoles and terminal alkynes has been reported. Under the optimized reaction conditions, a broad range of substituted triazoles and alkynes were found to participate in this transformation, thus affording unknown 1,2,3-triazolo cinnolinone derivatives in moderate to excellent yields. This method proceeds through sequential C-C coupling followed by an annulation cascade sequence in the same vessel under atmospheric air as the sole oxidant, thus representing a simple, efficient and atom economical approach for the synthesis of aza-cinnolinones.
Synthesis of I-125 labeled photoaffinity rapamycin analogs
Shu, Arthur Y.L.,Yamashita, Dennis S.,Holt, Dennis A.,Heys, J. Richard
, p. 227 - 237 (2007/10/03)
Two no-carrier-added 125I-labeled photoaffinity rapamycin analogs were prepared: 7-demethoxy-7-(4-azido-3-125I-benzyloxy)rapamycin (2) and its C28-C29 seco analog 3. The key reactions of the synthesis were subst