Group Members
JNJ Members
Show Display Options
Post-Doctoral Fellows
Sergey Tsukanov
Sergey Tsukanov
Ph.D. Chemistry, 2012, North Carolina State University, NC
M.S. Chemical Technology and Biotechnology (Honors), 2007, Moscow State Academy of Fine Chemical Technology, Russia
B.S. Chemistry & Chemical Technology, 2005, Moscow State Academy of Fine Chemical Technology , Russia

Sergey was born in Moscow, Russia. He completed his undergraduate studies at Moscow State Academy of Fine Chemical Technology and earned a Bachelor of Science degree in Chemistry and Chemical Technology in 2005. After graduation, he continued his studies at Moscow State Academy of Fine Chemical Technology, and in 2007, he received a Master of Science in Chemical Technology and Biotechnology with Honors. Upon completion of his Master’s program, Sergey decided to pursue a career in synthetic chemistry and began his graduate studies at North Carolina State University under the supervision of Dr. Daniel L. Comins working on the synthesis of indolizidine alkaloids lepadiformine and 205B. He successfully completed the total synthesis of 205B and received his PhD degree in 2012.

Roozbeh Yousefi
Roozbeh Yousefi
Ph.D. Chemistry, 2012, Michigan State University, MI
M.S. Chemistry, 2004, Sharif University of Technology, Iran
B.S. Chemistry, 2002, Shahid Beheshty University , Iran

Roozbeh hails from Tehran, Iran where he completed his B.S in chemistry at Shahid Beheshty University and M.S in organic chemistry at Sharif University of Technology. After working for a year for Castrol Company he began his further graduate studies with Babak Borhan at Michigan State University. During his time in MSU, he worked on asymmetric halocyclization reactions, and particularly on the mechanism of the asymmetric chlorolactonization. He was able to clarify the mechanism of the chlorolactonization by labeling, NMR and RPKA studies.

Kazuyuki Tokumaru
Kazuyuki Tokumaru
Ph.D., 2006, Chiba University, Japan
M.S. Pharmaceutical Sciences, 2003, Nagoya City University, Japan
B.S. Pharmaceutical Sciences, 2001, Nagoya City University, Japan
Kazuyuki was born and raised in Nagoya, Japan. He began his training at Nagoya City University, where he worked with Professor Takayuki Shioiri and Professor Toyohiko Aoyama to develop asymmetric phase-transfer catalysis. After receiving his M.S. degree in 2003, he moved to Chiba University, where he worked with Professor Atsushi Nishida. He received Ph.D. in 2006 accomplishing the total synthesis of manzamine A. He is a researcher of pharmaceutical research division of Toray Industries, Inc., Japan and joined the group as a Visiting Scientist in March 2015.
 
Graduate Students
Michael Danneman
Michael Danneman
B.S. Chemistry, 2010, Xavier University, OH
Michael Danneman is a native of Kentucky and completed his undergraduate studies in chemistry at Xavier University in Cincinnati, Ohio. With the mentorship of Professor Rick Mullins, Michael worked toward the total synthesis of pilosinine. He matriculated at Vanderbilt in 2010, and joined the group after his rotations. Secretly, we are hoping he will share knowledge of a certain recipe from his former employer Skyline Chili. 
Brandon Vara
Brandon Vara
B.S. Chemistry, 2010, James Madison University, VA

Although born in Irvine, California, Brandon represents the traffic-laden suburbs of Northern Virginia and received his B.S. in Chemistry from James Madison University in Harrisonburg, Virginia. At JMU Brandon worked with Professor Kevin Minbiole exploring cyclopropane fragmentations and subsequent rearrangements to azepines and piperidines. In the summer of 2009, he interned with Amgen in medicinal chemistry as a wide-eyed undergraduate and developed diterpene libraries via unique biooxidations. Beginning his graduate studies in chemistry at Vanderbilt in 2010, Brandon is currently working towards novel Nutlin-3 derivatives using chiral proton catalysis. He enjoys baseball, interest rates, and wide variety of coffee beverages.

Ken Schwieter
Ken Schwieter
B.S. Chemistry, 2011, Xavier University, OH

Chapter 1. Ken was born and raised in Cincinnati, OH. He began at Xavier University in 2007 and worked with Prof. Rick Mullins as an undergraduate researcher. Provided a furlough for the summer, he joined the privileged (albeit dubious) ranks of NSF-REU students at Vanderbilt, and more specifically, the Johnston group. Ken assisted the PBAM scale-up campaign, and prepared a novel BAM ligand. Ken is an avid collector and amateur model for St. X, Xavier, and Vanderbilt T-shirts.

Chapter 2. Ken matriculated at Vanderbilt in 2011, and completed his rotations during the Fall. He then joined the group in January 2012 and is developing the enantioselective synthesis of aliphatic a-amino acids using a combination of chiral proton catalysis and Umpolung Amide Synthesis.

Daniel Sprague
Daniel Sprague
B.S. Biochemistry, 2011, University of Miami, FL
B.S. Chemistry, 2011, University of Miami, FL
Dan grew up in New Jersey, but flew south for college to the University of Miami. He completed his B.S. Biochemistry and B.S. Chemistry degrees (General Honors) in 2011 with magna cum laude distinction. While at Miami, Prof. Norito Takenaka inspired him to begin research in organic chemistry, through which Dan prepared several new helically chiral catalysts for enantioselective catalysis. Dan completed his rotations at Vanderbilt during the summer and Fall, and joined the group in January 2012. He is investigating chiral proton catalyzed enantioselective hetero-Diels-Alder reactions.
Thomas Struble
Thomas Struble
B.S. Biochemistry, 2012, College of Charleston, SC
B.A. Chemistry, 2012, College of Charleston, SC

Thomas was born in Fargo, North Dakota and grew up on the beach in Charleston, SC. At the College of Charleston he worked for Dr. Marcello Forconi, where he worked on elucidation of the mechanism of catalysis for the hammerhead ribozyme. In his all-elusive free time he enjoys fishing, golfing, and swimming. Thomas smokes a mean rack of ribs, chicken, and boston butt but needs donations for a new smoker. Thomas joined the group after completing his third rotation.

Matthew Knowe
Matthew  Knowe
B.S. Biochemistry, 2012, College of Charleston, SC

Matthew was born in Athens, Georgia in 1990, and has lived in Oregon, Florida, Tennessee, and South Carolina since then. He studied Biochemistry at the College of Charleston and conducted chemical biology research under Dr. Marcello Forconi. He began his graduate studies at Vanderbilt in 2012. Matthew tries to keep a strict diet of gummy worms and ice cream, and he enjoys any type of game anytime anywhere, including 'creative expression portraiture' initiated by Thomas. 

 

Suzanne Batiste
Suzanne Batiste
B.S. Bioengineering, 2012, UC San Diego, CA

Suzanne was born and raised in California. She received her B.S in bioengineering at the University of California, San Diego. At UCSD, Suzanne worked on creating a device to detect essential minerals for algae growth using gene circuits.  She began her graduate studies in chemistry at Vanderbilt in 2012. In her spare time, Suzanne enjoys running, dancing, and playing with her two cats (also making them dance and feeding them cheese). Suzanne joined the group after completing her rotations.

Andrew Flach
Andrew Flach
B.S. Chemistry, 2014, University of Louisville, KY
Andrew was born in 1991 in Cincinnati and grew up in Northern Kentucky. At the University of Louisville he conducted research as an undergraduate in the Hammond-Xu group, first working on elucidating the mechanism of toxicity of an anticancer compound developed by Dr. Xu, and then investigating the role and effects of different counterions in organocatalysis. He joined Vanderbilt University in the Fall of 2014, and joined the Johnston group in March of 2015 after completing his rotations. He is currently studying counterion in PBAM-catalyzed reactions.
Jade Bing
Jade Bing
B.S. Biochemistry, 2013, Rider University, NJ
Jade is a Jersey girl, born and raised. In 2013 she received an ACS accredited B.S. in biochemistry from Rider University. At Rider, Jade became a McNair Scholar (2011) and worked with Dr. Danielle Jacobs on the stereocontrolled total chemical syntheses of cytotoxic and antimycobacterial natural products. In the summer of 2012, she worked with Dr. Robert Knowles at Princeton University on the use of PCET for intermolecular ketyl-olefin coupling. After graduation, she became a research coordinator and counselor for the Ronald E. McNair Post-Baccalaureate Achievement Program before coming to Vanderbilt in the fall of 2014. Jade truly appreciates a clever one-liner or pun and in her free time she enjoys playing sports, cooking and games.
 
UnderGraduate Students
Zachary Carter
Zachary Carter
Zach is a rising junior at Vanderbilt University, majoring in Chemical Engineering and Chemistry, with minors in biology and neuroscience. He was born and raised in Chicago, IL. Zach is a Chancellor’s Scholar and continuing Resident Advisor in the Martha Ingram Freshmen Commons. He is also the Cultural Chair of the Vanderbilt Association of Hispanic Students. Zach took organic chemistry as a Freshman and gained research experience through the Department of Epithelial Cancer Biology. In 2014 he began work with the Johnston laboratory in an effort to apply new chemical methods to the synthesis of natural products with interesting biological activity, and became a VU Beckman Scholar for May 2014-August 2015. His postgraduate plan is to attend medical school in pursuit of an MD/PhD dual degree, eventually specializing in neurosurgery.
 
REU Students
Jessica Zinna
Jessica Zinna
B.S. Chemistry, 2016, Winthrop University, SC
Jessica is a rising senior at Winthrop University majoring in Chemistry with a Math minor, where she conducts research under the mentorship of Dr. Maria Gelabert in the field of hydrothermal crystal growth. Jessica is the president of the Winthrop chapter of Alpha Chi Sigma, a member of the honors college, and a departmental tutor. She was born in Connecticut, but spent most of her time in Ohio and South Carolina where she acquired her love for sweet tea and biscuits. In her free time Jessica enjoys baking, taking naps, eating pasta, and watching cat videos. Her postgraduate plan is still to be determined.
 
Rotation Students
 
Monday 06 Jul, 19:56:08
Copyright © 2006-2010 By MyChemisTree.com   All Rights Reserved.