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DR ANTHONY MELVIN CRASTO, Born in Mumbai in 1964 and graduated from Mumbai University, Completed his Ph.D from ICT, 1991,Matunga, Mumbai, India, in Organic Chemistry, The thesis topic was Synthesis of Novel Pyrethroid Analogues, Currently he is working with GLENMARK LIFE SCIENCES LTD, Research Centre as Principal Scientist, Process Research (bulk actives) at Mahape, Navi Mumbai, India. Total Industry exp 30 plus yrs, Prior to joining Glenmark, he has worked with major multinationals like Hoechst Marion Roussel, now Sanofi, Searle India Ltd, now RPG lifesciences, etc. He has worked with notable scientists like Dr K Nagarajan, Dr Ralph Stapel, Prof S Seshadri, Dr T.V. Radhakrishnan and Dr B. K. Kulkarni, etc, He did custom synthesis for major multinationals in his career like BASF, Novartis, Sanofi, etc., He has worked in Discovery, Natural products, Bulk drugs, Generics, Intermediates, Fine chemicals, Neutraceuticals, GMP, Scaleups, etc, he is now helping millions, has 9 million plus hits on Google on all Organic chemistry websites. His friends call him Open superstar worlddrugtracker. His New Drug Approvals, Green Chemistry International, All about drugs, Eurekamoments, Organic spectroscopy international, etc in organic chemistry are some most read blogs He has hands on experience in initiation and developing novel routes for drug molecules and implementation them on commercial scale over a 30 PLUS year tenure till date June 2021, Around 35 plus products in his career. He has good knowledge of IPM, GMP, Regulatory aspects, he has several International patents published worldwide . He has good proficiency in Technology transfer, Spectroscopy, Stereochemistry, Synthesis, Polymorphism etc., He suffered a paralytic stroke/ Acute Transverse mylitis in Dec 2007 and is 90 %Paralysed, He is bound to a wheelchair, this seems to have injected feul in him to help chemists all around the world, he is more active than before and is pushing boundaries, He has 9 million plus hits on Google, 2.5 lakh plus connections on all networking sites, 90 Lakh plus views on dozen plus blogs, 233 countries, 7 continents, He makes himself available to all, contact him on +91 9323115463, email, Twitter, @amcrasto , He lives and will die for his family, 90% paralysis cannot kill his soul., Notably he has 33 lakh plus views on New Drug Approvals Blog in 233 countries...... , He appreciates the help he gets from one and all, Friends, Family, Glenmark, Readers, Wellwishers, Doctors, Drug authorities, His Contacts, Physiotherapist, etc

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Motesanib (AMG-706)

Motesanib (AMG-706)

Amgen Inc.



Motesanib (AMG 706) is an experimental drug candidate originally developed by Amgen[1] but is now being investigated by theTakeda Pharmaceutical Company. It is an orally administered small molecule belonging to angiokinase inhibitor class which acts as an antagonist of VEGF receptors, platelet-derived growth factor receptors, and stem cell factor receptors.[2] It is used as thephosphatesalt motesanib diphosphate.

Motesanib, also known as AMG-706, is an orally administered multikinase inhibitor that selectively targets VEGF receptors, platelet-derived growth factor receptors, and Kit receptors.

Clinical trials

Motesanib was originally investigated for effectiveness against advanced nonsquamous non-small-cell lung cancer (NSCLC), withPhase II trials indicating an effectiveness comparable to bevacizumab when they were both used in combination withpaclitaxel/carboplatin.[3] However a later and more detailed Phase III trial failed to show any benefit for the treatment of NSCLC.[2][4]A second Phase III trial was started in 2012,[5] which focused on patients from Asian backgrounds (performed on the bases ofsubgroup analysis)[6] however this also failed to meet its primary endpoint.[7]

The drug has undergone a Phase II evaluation as first-line therapy for breast cancer[2] however this study found no evidence to support further investigation.[8] Phase II testing against persistent or recurrent ovarian, fallopian tube and primary peritoneal carcinomas was also unsuccessful.[9]

There have also been 2 separate Phase II clinical trials for thyroid cancer which have both shown promising results.[10][11][12]

Developed at Amgen, the compound is also being evaluated as both monotherapy and in combination with other agents in the treatment of breast, colorectal, lung, thyroid and ovarian cancers. Clinical trials for the treatment of bladder cancer have been terminated.

The National Cancer Institute had been evaluating the potential of the drug in patients with low-grade neuroendocrine tumors; however, no recent development has been reported for this research. The FDA awarded fast track status to motesanib in 2004. In 2008, the compound was licensed to Takeda in Japan.

AMG-706 is synthesized as follows: 1-Acetyl-3,3-dimethyl-6-nitroindoline (I) is reduced by catalytic hydrogenation over Pd/C, giving the aminoindoline (II), which is then coupled with 2-chloronicotinoyl chloride (III) in the presence of DIEA to yield the corresponding nicotinamide (IV). Subsequent condensation of (IV) with neat 4-(aminomethyl)pyridine (V) at 120 °C affords the 2-aminonicotinamide derivative (VI). The N-acetyl group of (VI) is finally removed by acidic hydrolysis to furnish the title compound (1,2).


US 2003125339


US 2003225106



Figure US20030225106A1-20031204-C00230


Step A—Preparation of 1-acetyl-6-amino-3,3-dimethylindoline

1-Acetyl-3,3-dimethyl-6-nitroindoline (250 mg) was dissolved in MeOH (20 mL), the mixture was bubbled with H2 for 10 min. 10% Pd/C (50 mg) was added and the mixture was stirred under H2 overnight. The mixture was filtered through Celite® and concentrated in vacuo. The crude material was purified by flash chromatography on silica gel with 1:1 EtOAc:CH2Cl2 to afford the title compound as a white crystalline material. MS: 205 (M+1). Calc’d. for C12H16N2O—204.27.

Step B—Preparation of N-(1-acetyl-3,3-dimethylindolin-6-yl){2-[(4-pyridylmethyl)amino](3-pyridyl)}carboxamide

The titled compound was prepared from 1-acetyl-6-amino-3,3-dimethylindoline (Step A) by the method described in Example 82.

Step C—Preparation of N-(3,3-dimethylindolin-6-yl){2-[(4-pyridylmethyl)amino](3-pyridyl)}carboxamide

The titled compound was prepared from N-(1-acetyl-3,3-dimethylindolin-6-yl){2-[(4-pyridylmethyl)amino](3-pyridyl)}carboxamide (Step B) by the deacylation method described in Example 993. MS: 374 (M+1). Calc’d. for C22H23N5O—373.45.


Example 133

N- (3, 3-Dimethy1indolin-6-yl) {2- [ (4-pyridylmethyl) amino] (3- pyridyl) }carboxamide Step A – Preparation of l-acetyl-6-amino-3 , 3- dimethylindoline l-Acetyl-3 , 3-dimethyl-6-nitroindoline (250 mg) was dissolved in MeOH (20 mL) , the mixture was bubbled with H2 for 10 min. 10% Pd/C (50 mg) was added and the mixture was stirred under H2 overnight. The mixture was filtered through Celite® and concentrated in vacuo. The crude material was purified by flash chromatography on silica gel with 1:1 EtOAc :CH2C12 to afford the title compound as a white crystalline material. MS: 205 (M+1). Calc’d. for C12H16N2O-204.27.

Step B – Preparation of N-(l-acetyl- 3 , 3-dimethylindolin-6- yl) (2-[ (4-pyridylmethyl) amino] (3-pyridyl) } carboxamide The titled compound was prepared from l-acetyl-6- amino-3 , 3-dimethylindoline (Step A) by the method described in Example 82.

Step C – Preparation of N- (3 , 3-dimethylindolin-6-yl) {2- [ (4- pyridylmethyl) amino] (3-pyridyl) }carboxamide

The titled compound was prepared from N-(l-acetyl- 3 , 3-dimethylindolin-6-yl) {2- [ (4-pyridylmethyl) amino] (3- pyridyl) } carboxamide (Step B) by the deacylation method described in Example 993. MS: 374 (M+1). Calc’d. for C22H23N50-373.45.


  1. Stafford, edited by Rongshi Li, Jeffrey A. (2009). “Chapter 5. Discovery of Motesanib”. Kinase inhibitor drugs. Hoboken, N.J.: Wiley. pp. 113–130. ISBN 978-0-470-27829-1.
  2. “Amgen and Takeda’s NSCLC Drug Fails in Phase III Study”. 30 Mar 2011.
  3. Blumenschein Jr, G. R.; Kabbinavar, F.; Menon, H.; Mok, T. S. K.; Stephenson, J.; Beck, J. T.; Lakshmaiah, K.; Reckamp, K.; Hei, Y.- J.; Kracht, K.; Sun, Y.- N.; Sikorski, R.; Schwartzberg, L. (14 February 2011). “A phase II, multicenter, open-label randomized study of motesanib or bevacizumab in combination with paclitaxel and carboplatin for advanced nonsquamous non-small-cell lung cancer”. Annals of Oncology 22 (9): 2057–2067. doi:10.1093/annonc/mdq731.
  4. Jump up^ Scagliotti, G. V.; Vynnychenko, I.; Park, K.; Ichinose, Y.; Kubota, K.; Blackhall, F.; Pirker, R.; Galiulin, R.; Ciuleanu, T.-E.; Sydorenko, O.; Dediu, M.; Papai-Szekely, Z.; Banaclocha, N. M.; McCoy, S.; Yao, B.; Hei, Y.-j.; Galimi, F.; Spigel, D. R. (2 July 2012). “International, Randomized, Placebo-Controlled, Double-Blind Phase III Study of Motesanib Plus Carboplatin/Paclitaxel in Patients With Advanced Nonsquamous Non-Small-Cell Lung Cancer: MONET1”. Journal of Clinical Oncology 30 (23): 2829–2836. doi:10.1200/JCO.2011.41.4987. PMID 22753922.
  5. “Takeda Initiates Phase 3 Trial of Motesanib in Japan and Additional Asian Countries”. Takeda Pharmaceutical Company Limited. Retrieved 19 February 2015.
  6. Kubota, K.; Ichinose, Y.; Scagliotti, G.; Spigel, D.; Kim, J. H.; Shinkai, T.; Takeda, K.; Kim, S.- W.; Hsia, T.- C.; Li, R. K.; Tiangco, B. J.; Yau, S.; Lim, W.- T.; Yao, B.; Hei, Y.- J.; Park, K. (13 January 2014). “Phase III study (MONET1) of motesanib plus carboplatin/paclitaxel in patients with advanced nonsquamous nonsmall-cell lung cancer (NSCLC): Asian subgroup analysis”.Annals of Oncology 25 (2): 529–536. doi:10.1093/annonc/mdt552.
  7. Jump up^ “Takeda Announces Phase 3 MONET-A Study Evaluating Motesanib (AMG 706) in Patients with Advanced Non-Squamous Non-Small Cell Lung Cancer Does Not Meet Primary Endpoint”. Takeda Pharmaceutical Company Limited. Retrieved 19 February 2015.
  8.  Martin, Miguel; Roche, Henri; Pinter, Tamas; Crown, John; Kennedy, M John; Provencher, Louise; Priou, Frank; Eiermann, Wolfgang; Adrover, Encarna; Lang, Istvan; Ramos, Manuel; Latreille, Jean; Jagiełło-Gruszfeld, Agnieszka; Pienkowski, Tadeusz; Alba, Emilio; Snyder, Raymond; Almel, Sachin; Rolski, Janusz; Munoz, Montserrat; Moroose, Rebecca; Hurvitz, Sara; Baños, Ana; Adewoye, Henry; Hei, Yong-Jiang; Lindsay, Mary-Ann; Rupin, Matthieu; Cabaribere, David; Lemmerick, Yasmin; Mackey, John R (April 2011). “Motesanib, or open-label bevacizumab, in combination with paclitaxel, as first-line treatment for HER2-negative locally recurrent or metastatic breast cancer: a phase 2, randomised, double-blind, placebo-controlled study”. The Lancet Oncology 12 (4): 369–376. doi:10.1016/S1470-2045(11)70037-7. PMID 21429799.
  9. Schilder, R.J.; Sill, M.W.; Lankes, H.A.; Gold, M.A.; Mannel, R.S.; Modesitt, S.C.; Hanjani, P.; Bonebrake, A.J.; Sood, A.K.; Godwin, A.K.; Hu, W.; Alpaugh, R.K. (April 2013). “A phase II evaluation of motesanib (AMG 706) in the treatment of persistent or recurrent ovarian, fallopian tube and primary peritoneal carcinomas: A Gynecologic Oncology Group study”. Gynecologic Oncology 129 (1): 86–91. doi:10.1016/j.ygyno.2013.01.006. PMID 23321064.
  10. Motesanib Diphosphate Provides Anticancer Activity Among Patients with Progressive Thyroid Cancer,
  11. Jump up^ Schlumberger, M. J.; Elisei, R.; Bastholt, L.; Wirth, L. J.; Martins, R. G.; Locati, L. D.; Jarzab, B.; Pacini, F.; Daumerie, C.; Droz, J.-P.; Eschenberg, M. J.; Sun, Y.-N.; Juan, T.; Stepan, D. E.; Sherman, S. I. (29 June 2009). “Phase II Study of Safety and Efficacy of Motesanib in Patients With Progressive or Symptomatic, Advanced or Metastatic Medullary Thyroid Cancer”.Journal of Clinical Oncology 27 (23): 3794–3801. doi:10.1200/JCO.2008.18.7815. PMID 19564535.
  12. Sherman, Steven I.; Wirth, Lori J.; Droz, Jean-Pierre; Hofmann, Michael; Bastholt, Lars; Martins, Renato G.; Licitra, Lisa; Eschenberg, Michael J.; Sun, Yu-Nien; Juan, Todd; Stepan, Daniel E.; Schlumberger, Martin J. (3 July 2008). “Motesanib Diphosphate in Progressive Differentiated Thyroid Cancer”. New England Journal of Medicine 359 (1): 31–42.doi:10.1056/NEJMoa075853. PMID 18596272.

External links



Motesanib Diphosphate (AMG-706)

857876-30-3 diphosphate
453562-69-1 (free base)

N-(2,3-Dihydro-3,3-dimethyl-1H-indol-6-yl)-2-[(4-pyridinylmethyl)amino]-3-pyridinecarboxamide diphosphate

3-​Pyridinecarboxamide, N-​(2,​3-​dihydro-​3,​3-​dimethyl-​1H-​indol-​6-​yl)​-​2-​[(4-​pyridinylmethyl)​amino]​-​, phosphate (1:2)

N-(3,3-Dimethyl-2,3-dihydro-1H-indol-6-yl)-2-(pyridin-4-ylmethylamino)pyridine-3-carboxamide diphosphate

Formula C22H23N5O.2H3PO4

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Takeda Pharmaceutical CEO Yasuchika Hasegawa

Takeda Pharmaceutical Co. President Christophe Weber is interviewed recently in Tokyo.

Christophe Weber (L), the new president of Takeda Pharmaceutical Co., and CEO Yasuchika Hasegawa pose



Dr. Paul Chapman of Takeda Pharmaceuticals colors in the eye…

Map of osaka japan




Dotonbori, Osaka, Japan



Bayer receives Canadian approval for Nexavar to treat differentiated thyroid cancer







Bayer receives Canadian approval for Nexavar to treat differentiated thyroid cancer

Health Canada has approved Bayer’s Nexavar (sorafenib tablets) for treatment of patients with locally advanced or metastatic, progressive, differentiated (papillary/follicular/Hurthle cell) thyroid carcinoma, refractory to radioactive iodine.

Nexavar’s approval in Canada is supported by a positive outcome from the Phase III DECISION (‘stuDy of sorafEnib in loCally advanced or metastatIc patientS with radioactive Iodine refractory thyrOid caNcer’) trial.







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