摘要:
Synthesis and intermediates The invention relates to novel synthesis methods for the preparation of the intermediates, which are suitable for the preparation of statin derivatives, especially to novel synthesis methods of the intermediate of formula VI
wherein R a ' and R c ' are each independently of the other hydrogen or a hydroxy-protecting group or together are a bridging hydroxy-protecting group, and R b is a carboxy-protecting group, which methods are carried out by conversion of the intermediate of formula XVI
wherein R a ' and R c ' are each independently of the other hydrogen or a hydroxy-protecting group, R* and R** are each independently of the other hydrogen or an amide-protecting group, and R b is a carboxy-protecting group; which methods proceed to further new intermediates and methods for their preparation.
摘要:
The invention relates to a semiconductor device comprising a compound of the formula IB wherein the symbols have the meanings defined in the specification, to the novel compounds of the formula IB and to the use of such a compound as an organic semiconductor for the preparation of an electronic device, and further compounds and devices, as well as other embodiments given in the specification.
摘要:
The invention relates to a semiconductor device comprising a compound of the formula IB
wherein the symbols have the meanings defined in the specification, to the novel compounds of the formula IB and to the use of such a compound as an organic semiconductor for the preparation of an electronic device, and further compounds and devices, as well as other embodiments given in the specification.