摘要:
The invention relates to two novel crystalline form of Topotecan hydrochloride (Ia) Herein referred to as forms α and β, characterized by high purity and whose preparation is advantageous from the industrial point of view. Form α can be in fact conveniently prepared starting from 10-hydroxy-camptothecin, whereas form β can be prepared starting from form α.
摘要:
The invention relates to a process for the preparation of thalidomide (I) comprising the reaction between glutamine (II) and a phthaloylating agent, preferably phthalic anhydride, to give N-phthaloyl-glutamine, which is directly transformed in thalidomide.
摘要:
A method for packaging skeins shaped as a circular ring of a flexible element of elongated shape, in particular a cable or a hose, wherein the turns are held unitarily to each other, comprises the following phases: sustaining the skein in overhang towards a binding station holding it by the clamping of opposite planar aces of the skein effected in correspondence with at least a first portion of the skein; binding the skein in correspondence with at least its second, free, portion which projects from the first held portion; rotating the skein around its own axis of symmetry by a predetermined angle with respect to the position of the skein in the previous binding phase; and binding the skein again in correspondence with its own rotated position.
摘要:
A method for packaging skeins shaped as a circular ring of a flexible element of elongated shape, in particular a cable or a hose, wherein the turns are held unitarily to each other, comprises the following phases: sustaining the skein in overhang towards a binding station holding it by the clamping of opposite planar faces of the skein effected in correspondence with at least a first portion of the skein; binding the skein in correspondence with at least its second, free, portion which projects from the first held portion; rotating the skein around its own axis of symmetry by a predetermined angle with respect to the position of the skein in the previous binding phase; and binding the skein again in correspondence with its own rotated position. The invention further relates to a machine that realizes the method.