6105-74-4Relevant articles and documents
NOVEL C28-ANALOGUES WITH C3-MODIFICATIONS OF TRITERPENE DERIVATIVES AS HIV INHIBITORS
-
, (2017/03/08)
The present invention relates to compounds of novel C28-analogues with C3- modifications of triterpene derivatives of formula (I); or pharmaceutically acceptable salts, pharmaceutically acceptable solvates, pharmaceutically acceptable hydrates, tautomers, stereoisomers, prodrugs, compositions or combination thereof, wherein R1, R2, R3, R4, R5, R6, R7, R8, X, and Z are as defined herein. The present invention also relates to pharmaceutical compositions comprising compounds of formula (I) useful for the treatment of viral diseases and particularly HIV mediated diseases.
Rapid Ti(Oi-Pr)4 facilitated synthesis of α,α,α-trisubstituted primary amines by the addition of Grignard reagents to nitriles under microwave heating conditions
Wang, Ruifang,Gregg, Brian T.,Zhang, Wei,Golden, Kathryn C.,Quinn, John F.,Cui, Peng,Tymoshenko, Dmytro O.
experimental part, p. 7070 - 7073 (2010/03/01)
A series of carbinamines (α,α,α-trisubstituted amines) have been prepared in a simple and efficient one-pot procedure by the addition of Grignard reagents to a series of aliphatic, aromatic and heteroaromatic nitriles. The resulting magnesium imines are subsequently converted to the desired amine after treatment with Ti(Oi-Pr)4 and additional microwave heating. Key to this procedure is the use of microwave heating for both steps of the reaction protocol, which significantly improves both reaction yields and reduces reaction times. In general, the Grignard addition reaction is complete within 5-10 min at 100 °C followed by conversion with Ti(Oi-Pr)4 and additional microwave heating to give the target amines in good yields.
SYNTHESES OF 2-GUANIDINO-2-METHYLPROPYLAMINE DERIVATIVES.
TSUJI,UEDA
, p. 946 - 950 (2007/10/04)
-