Sam Nguyen
Nail Technician at Pennsylvania St, Denver, CO

License number
Colorado 6000261
Issued Date
Oct 20, 2014
Renew Date
Apr 1, 2016
Expiration Date
Mar 31, 2018
Type
Nail Technician
Address
Address
6850 S Pennsylvania St, Denver, CO 80122
LicenseFiles verified this license of Dec 9, 2016 at the Colorado - Department of Regulatory Agencies.

Professional information

Sam Nguyen Photo 1

Sam Nguyen
Position:
Applications Technician at Cerentex, LLC, Marketing at Lens Dynamics, Inc.
Location:
Denver, Colorado
Industry:
Medical Devices
Work:
Cerentex, LLC since Jan 2011 - Applications Technician Lens Dynamics, Inc. since Sep 2001 - Marketing

Sam Nguyen Photo 2

Process For Preparing A 2-(2-Amino-1, 6-Dihydro-6-Oxo-Purin-9-Yl)Methoxy-1,3-Propanediol Derivative

US Patent:
6340756, Jan 22, 2002
Filed:
Feb 3, 2000
Appl. No.:
09/497319
Inventors:
Charles A. Dvorak - Palo Alto CA
Douglas L. Wren - Palo Alto CA
Lawrence E. Fisher - Mountain View CA
Steven D. Axt - San Jose CA
Eric R. Humphreys - San Bruno CA
Humberto B. Arzeno - Cupertino CA
Colin C. Beard - Palo Alto CA
Sam Linh Nguyen - Denver CO
Yeun-Kwei Han - Louisville CO
Christopher R. Roberts - Berthoud CO
Jan P. Lund - Boulder CO
Paul R. Fatheree - San Francisco CA
Assignee:
Syntex (U.S.A.) Inc. - Palo Alto CA
International Classification:
C07D47318
US Classification:
544276

Sam Nguyen Photo 3

Process For Preparing A 2-(2-Amino-1,6-Dihydro-6-Oxo-Purin-9-Yl)Methoxy-1,3-Propanediol Derivative

US Patent:
6215017, Apr 10, 2001
Filed:
Feb 3, 2000
Appl. No.:
9/497537
Inventors:
Charles A. Dvorak - Palo Alto CA
Douglas L. Wren - Palo Alto CA
Lawrence E. Fisher - Mountain View CA
Steven D. Axt - San Jose CA
Eric R. Humphreys - San Bruno CA
Humberto B. Arzeno - Cupertino CA
Colin C. Beard - Palo Alto CA
Sam Linh Nguyen - Denver CO
Yeun-Kwei Han - Louisville CO
Christopher R. Roberts - Berthoud CO
Jan P. Lund - Boulder CO
Paul R. Fatheree - San Francisco CA
Assignee:
Syntex (U.S.A.) Inc. - Palo Alto CA
International Classification:
C07C 67743, C07C 6702
US Classification:
560106
Abstract:
Intermediates of Formula (III) ##STR1## wherein Y. sup. 1 is acyloxy, wherein acyl is of the formula R--C(O)--, wherein R is alkyl of 1-6 carbon atoms, Y. sup. 2 is aralkyloxy, and Z is benzoyloxy or acyloxy, wherein acyl is as defined above. Intermediates of formula (III) are useful in a novel process for preparing the mono-L-valine ester of 2-(2-amino-1,6-dihydro-6-oxo-purin-9-yl)methoxy-1,3-propanediol (ganciclovir). The mono-L-valine ester of ganciclovir and its pharmaceutically acceptable salts are of value as antiviral agents with improved absorption.

Sam Nguyen Photo 4

Process For Preparing A 2-(2-Amino-1,6-Dihydro-6-Oxo-Purin-9-Yl) Methoxy-1,3-Propanediol Derivative

US Patent:
6040446, Mar 21, 2000
Filed:
Jul 31, 1998
Appl. No.:
9/127380
Inventors:
Charles A. Dvorak - Palo Alto CA
Douglas L. Wren - Palo Alto CA
Lawrence E. Fisher - Mountain View CA
Steven D. Axt - San Jose CA
Eric R. Humphreys - San Bruno CA
Humberto B. Arzeno - Cupertino CA
Colin C. Beard - Palo Alto CA
Sam Linh Nguyen - Denver CO
Yeun-Kwei Han - Louisville CO
Christopher R. Roberts - Berthoud CO
Jan P. Lund - Boulder CO
Paul R. Fatheree - San Francisco CA
Assignee:
Syntex (U.S.A.) Inc. - Palo Alto CA
International Classification:
C07D47318
US Classification:
544276
Abstract:
Process and novel intermediates for preparing the L-mono-valine ester of 2-(2-amino-1,6-dihydro-6-oxo-purin-9-yl)methoxy-1,3-propanediol and its pharmaceutically acceptable salts. The present process and intermediates provide for reduced impurities in the mono-valine ester end-product and lower overall production costs. The process involves the condensation of a silylated guanine compound with a substituted glycerol derivative and esterification of this product with an L-valine derivative. These mono-valine products are of value as antiviral agents with improved absorption.

Sam Nguyen Photo 5

Marketing Assistant At Lens Dynamics
Position:
Marketing Assistant at Lens Dynamics
Location:
Greater Denver Area
Industry:
Medical Devices
Work:
Lens Dynamics - Marketing Assistant

Sam Nguyen Photo 6

Process For Preparing A 2-(2-Amino-1,6-Dihydro-6-Oxo-Purin-9-Yl)Methoxy-1,3-Propanediol Derivative

US Patent:
6218568, Apr 17, 2001
Filed:
Feb 3, 2000
Appl. No.:
9/497538
Inventors:
Charles A. Dvorak - Palo Alto CA
Douglas L. Wren - Palo Alto CA
Lawrence E. Fisher - Mountain View CA
Steven D. Axt - San Jose CA
Eric R. Humphreys - San Bruno CA
Humberto B. Arzeno - Cupertino CA
Colin C. Beard - Palo Alto CA
Sam Linh Nguyen - Denver CO
Yeun-Kwei Han - Louisville CO
Christopher R. Roberts - Berthoud CO
Jan P. Lund - Boulder CO
Paul R. Fatheree - San Francisco CA
Assignee:
Syntex (U.S.A.) Inc. - Palo Alto CA
International Classification:
C07C 67743, C07C 6702
US Classification:
560106
Abstract:
Process for preparing intermediates of formula (III) ##STR1## wherein Y. sup. 1 is acyloxy, wherein acyl is of the formula R--C(O)--, wherein R is alkyl of 1-6 carbon atoms, Y. sup. 2 is aralkyloxy, and Z is benzoyloxy or acyloxy, wherein acyl is as defined above. Intermediates of formula (III) are useful in a novel process for preparing the mono-L-valine ester of 2-(2-amino-1,6-dihydro-6-oxo-purin-9-yl)methoxy-1,3-propanediol (ganciclovir). The mono-L-valine ester of ganciclovir and its pharmaceutically acceptable salts are of value as antiviral agents with improved absorption.

Sam Nguyen Photo 7

Preparation Of N-9 Substituted Guanine Compounds

US Patent:
5565565, Oct 15, 1996
Filed:
Aug 4, 1994
Appl. No.:
8/286045
Inventors:
Eric Lodewijk - Boulder CO
Yeun-Kwei Han - Louisville CO
George C. Schloemer - Longmont CO
Sam L. Nguyen - Denver CO
Assignee:
Syntex (U.S.A.) Inc. - Palo Alto CA
International Classification:
C07D47318
US Classification:
544276
Abstract:
The invention relates to efficient and selective processes for the synthesis of the antiviral N-9 substituted guanine compounds acyclovir and ganciclovir.

Nail Technician licenses in Colorado