Location History:
- Los Gatos, CA (US) (1988 - 1994)
- Berwyn, PA (US) (1998 - 2000)
- Wayne, PA (US) (1996 - 2001)
Company Filing History:
5 out of 13 
3 out of 162 
1 out of 21 
Years Active: 1988-2001
Title: Janis Vasilevskis: Innovator in Aziridine Chemistry
Introduction
Janis Vasilevskis is a prominent inventor based in Los Gatos, California, known for his significant contributions to the field of chemistry. With a total of 11 patents to his name, Vasilevskis has made notable advancements in the preparation of aziridine derivatives and their applications in diagnostic imaging.
Latest Patents
His latest patents include the preparation of n-arylmethyl aziridine derivatives and 1,4,7,10-tetraazacyclododecane derivatives. These inventions focus on the cyclooligomerization reaction of aziridines, which can produce polyazacycloalkane compounds. These compounds are particularly useful in the preparation of chelating agents for diagnostic imaging contrast agents. One of his key inventions involves N-benzyl-aziridine, which can be cyclotetramerized and debenzylated to yield cyclen, a crucial intermediate in the preparation of chelating agents. Additionally, he has developed intermediates for the preparation of iodinated contrast agents, including 5-substituted isophthalic acid bis(allylamides) and bis(allylamide epoxides).
Career Highlights
Throughout his career, Janis Vasilevskis has worked with several notable companies, including Catalytica Associates, Inc. and Nycomed Imaging. His work has significantly impacted the field of chemistry, particularly in the development of innovative compounds for medical applications.
Collaborations
Vasilevskis has collaborated with esteemed colleagues, including Jere D Fellmann and Jacques C De Deken. These collaborations have further enhanced his research and contributions to the field.
Conclusion
Janis Vasilevskis is a distinguished inventor whose work in aziridine chemistry has paved the way for advancements in diagnostic imaging. His innovative patents and collaborations reflect his commitment to scientific progress and the development of useful chemical compounds.
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