Inventor
ASKIN DAVID
US32 patents
⚠️ This page may combine multiple inventors who share the name “ASKIN DAVID”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MERCK & CO INC
29 patentsUS4820850AApr 11, 1989
Process for α-C-alkylation of the 8-acyl group on mevinolin and analogs thereof
MERCK & CO INC154 citations99
US5169952ADec 8, 1992
Stereoselective production of hydroxyamide compounds from chiral α-amino epoxides
MERCK & CO INC29 citations92
US6642237B1Nov 4, 2003
Gamma-hydroxy-2-(fluoroalkylaminocarbonyl)-1-piperazinepentanamides and uses thereof
MERCK & CO INC20 citations80
US4920218AApr 24, 1990
Novel hydroxide mediated FK-506 rearrangement process
MERCK & CO INC10 citations74
US5723615AMar 3, 1998
Process for preparing 4-tert-butyloxycarbonyl-(S)-piperazine-2-tert-butylcarboxamide
MERCK & CO INC7 citations73
US5618939AApr 8, 1997
Process for making HIV protease inhibitors
MERCK & CO INC4 citations73
US5612484AMar 18, 1997
Process for making HIV protease inhibitors
MERCK & CO INC12 citations73
US5463067AOct 31, 1995
Process for making HIV protease inhibitors
MERCK & CO INC11 citations73
US5446158AAug 29, 1995
Process for synthesis of FK-506 and tricarbonyl intermediates
MERCK & CO INC7 citations73
US5728840AMar 17, 1998
Process for making an epoxide
MERCK & CO INC7 citations72
US6071916AJun 6, 2000
HIV protease inhibitor
MERCK & CO INC12 citations71
US5929243AJul 27, 1999
Process for the preparation of (S)-3-carbethoxy-3-benzylpiperidine
MERCK & CO INC7 citations70
US5087703AFeb 11, 1992
Process for synthesis of FK-506 intermediates
MERCK & CO INC2 citations63
US4980466ADec 25, 1990
Hydroxide mediated FK-506 rearrangement product
MERCK & CO INC2 citations63
US5637711AJun 10, 1997
Process for making HIV protease inhibitors
MERCK & CO INC3 citations62
US5496948AMar 5, 1996
Process for making HIV protease inhibitors
MERCK & CO INC3 citations62
US5491238AFeb 13, 1996
Process for making HIV protease inhibitors
MERCK & CO INC5 citations62
US6160118ADec 12, 2000
Process for the synthesis of substituted piperazinones via Mitsunobu reaction
MERCK & CO INC6 citations61
US5663341ASep 2, 1997
Process for making HIV protease inhibitors
MERCK & CO INC4 citations61
US5618937AApr 8, 1997
Process to make HIV protease inhibitor from (2S)-4-picolyl-2-piperazine-t-butylcarboxamide
MERCK & CO INC5 citations61
US7598264B2Oct 6, 2009
HIV integrase inhibitors
MERCK & CO INC7 citations59
US5235066AAug 10, 1993
FK-506 type macrolide intermediate
MERCK & CO INC3 citations59
US5508404AApr 16, 1996
Reductive amination process
MERCK & CO INC3 citations58
US6239280B1May 29, 2001
Process for synthesizing biaryl inhibitors of farnesyl-protein transferase
MERCK & CO INC2 citations55
US5861512AJan 19, 1999
Process for making HIV protese inhibitors
MERCK & CO INC0 citations51
US5693803ADec 2, 1997
Process for making HIV protease inhibitors
MERCK & CO INC0 citations51
US5164525ANov 17, 1992
Synthetic process for fk-506 type macrolide intermediates
MERCK & CO INC0 citations49
US6388083B2May 14, 2002
Process for the synthesis of (2S)-phenyl-3-piperidone
MERCK & CO INC1 citations46
US6140508AOct 31, 2000
Process for making 1,5-disubstituted imidazoles
MERCK & CO INC0 citations34
ARRAY BIOPHARMA INC
3 patentsUS9790190B2Oct 17, 2017
Process for making hydroxylated cyclopentylpyrimidine compounds
ARRAY BIOPHARMA INC7 citations83
US9676730B2Jun 13, 2017
Process for making hydroxylated cyclopentylpyrimidine compounds
ARRAY BIOPHARMA INC9 citations83
US9416110B2Aug 16, 2016
Process for making hydroxylated cyclopentylpyrimidine compounds
ARRAY BIOPHARMA INC10 citations83