Synthesis of acylguanidine analogs: inhibitors of ADP-induced platelet aggregation
作者:Edward W. Thomas、Edward E. Nishizawa、David C. Zimmermann、Davey J. Williams
DOI:10.1021/jm00121a041
日期:1989.1
Routine screening of compounds for inhibition of ADP-inducedplateletaggregation in vitro revealed that 1,1'-hexamethylenebis[3-cyclohexyl-3-[(cyclohexylimino) (4-morpholinyl) methyl]urea] (1) was active and represented the first example of a bis(acylguanidine) with possible antithrombotic activity. In order to develop a structure-activity relationship for this class of compounds, we synthesized a
A mild and convenient method for the preparation of multi-isocyanates starting from primary amines
作者:H.W.I. Peerlings、E.W. Meijer
DOI:10.1016/s0040-4039(98)02515-5
日期:1999.1
A mild and convenient method for the synthesis and isolation of multi-isocyanates, obtained from the reaction of the correspondingprimaryamines with di-t-butyltricarbonate (1) is described.
The invention relates to polycyclic diiminooxadiazinones of the formula I and/or of the formula II,
in which in each case
R
1
to R
12
are each independently hydrogen, a saturated or unsaturated, linear or branched, aliphatic or cycloaliphatic organic radical having 1 to 20 carbon atoms, which is unsubstituted or is substituted by radicals inert to isocyanate groups, and/or comprises heteroatoms inert to isocyanate groups in the chain, or are an aromatic organic radical having 6 to 20 carbon atoms, which is unsubstituted or is substituted by radicals inert to isocyanate groups,
wherein two or more of the aforementioned radicals R
1
to R
6
may form further rings, in each case with one another and incorporating one, two or three carbon atoms of the fused ring segment X, and/or two or more of the aforementioned radicals R
7
to R
12
may form further rings, in each case with one another and incorporating one, two or three carbon atoms of the fused ring segment Y.